D. extensor carpi radialis longus. B flex the vertebral column The external intercostal muscles are used primarily in __________. C. pectoralis minor In rats, the sternocleidomastoid is composed of two bellies, a superficial sternomastoid medially and a deeper cleidomastoid laterally [ 3 ]. C. contributes to laughing and smiling. D. tensor fasciae latae After administering ketamine/xylazine mixture (50 and 5 mg/kg, respectively) in order to induce surgical anaesthesia, appropriate shaving of the right cervical area was performed. C the liver owes the muscles some oxygen A cerebrum: frontal lobes A quadriceps femoris Which of the following are correctly matched? D. masseter and medial pterygoid. deltoid; at a right angle to A. function and orientation. D. biceps femoris B. gluteus medius. C gluteus maximus flexes thigh Infer information from the first sentence, and then choose the word from the Word Bank that best completes the second sentence. Which muscle is the prime mover of arm abduction (assuming all fibers are used)? What is the antagonist of the Scalenes (Neck extension)? A external intercostals and internal intercostals D. internal intercostals. C both A and B C. levator ani and coccygeus muscles. d. It pushes the charge perpendicularly to the field and the charge's velocity. E. calcaneal tendon, Which of the following muscles is found in the lateral compartment of the leg? Can sternocleidomastoid muscle cause jaw pain? The subclavian muscle originates on the _____. B. transversus abdominis. C. peroneus brevis E. type and shape, Which of the following muscles is named for its shape? Which of the following muscles has superior, middle and inferior sections? A. quadriceps femoris B. biceps brachii The anconeus works with the triceps brachii to What is the antagonist of the Latissimus Dorsi (Extension of humerus)? . E. raises the eyelid. The __________ nerve innervates all of the extrinsic tongue muscles. b. Copyright A. genioglossus What is the function of Sternocleidomastoid? What is the antagonist of the Biceps Brachii (Flexion of forearm)? Which of these muscles is not the muscle of inspiration? 1 and 3 B. peroneus longus Which of the following muscles is a flexor of the thigh? D. subclavius D myoglobin in muscles, Which statement is NOT true of oxygen and muscles? D. zygomaticus major B. soleus Does your neck feel stiff or achy when you wake up in the morning? The extensor digitorum muscle is an example of a __________ muscle. E. gracilis, Which thigh muscle adducts the thigh and flexes the knee? A. brachioradialis and anconeus. E. extensor carpi radialis longus, Flexion of the hip is a movement produced by the E. psoas minor, Which back muscle extends the head? B. sartorius The sternocleidomastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. D troponin and myosin, When nerve impulses arrive so rapidly that a muscle fiber has no chance to relax, the result is B center lines of a sarcomere, and actin filaments are attached 3 synonyms for musculus sternocleidomastoideus: sternocleido mastoideus, sternocleidomastoid, sternocleidomastoid muscle. Which muscle lies directly posterior to the musculus serratus posterior inferior right and left muscle groups? a) frontalis. What action would a muscle have to be responsible for in order for the muscle to be an antagonist of the triceps brachia at the shoulder joint? b) masseter. (a) Auricular. Createyouraccount. A. pennate. C. rectus femoris. B. soleus a. Frontalis b. Occipitalis c. Masseter d. Sternocleidomastoid e. Rectus Abdominis f. Pectoralis Minor g. Pectoralis Major h. Supraspinatus i. Infraspinatus j. Subscapularis. anterior scalene, Eversion and plantar flexion is accomplished by muscles in the ______ compartment. E. raises the eyelid. C tibialis anterior A. deltoid C. infraspinatus the muscle elevates and/or adducts a region. B. fingers. a. The gluteus maximus a) Temporalis b) Frontalis c) Sternocleidomastoid d) Risorius. C. orbicularis oculi C more heat is produced as cell respiration decreases D. brachialis Flexor Carpi Ulnaris, Flexor Carpi Radialis. EXAMPLE:The 3 mooses were startled by the plain roaring overhead. Describe the relationship between bones and skeletal muscles in the production of body movements. Which muscle acts as both a knee (leg) extensor and hip (thigh) flexor? B) The sternocleidomastoid is the prime mover, and the sple nius cervicis is the synergist. What is the antagonist of the Semitendinosus (knee flexion)? Sternocleidomastoid muscle: want to learn more about it? The muscle(s) of mastication include which of the following? What is the antagonist of the Flexor Hallucis Longus (Toe 1 flexion)? A sodium ions B masseter It pulls the charge forward. 40,41 This involuntary contraction can be seen as an abnormal posturing and twisting of muscles during motor . D creatine phosphate/creatine, In cell respiration in muscles, the product that is a waste product is: Get instant access to this gallery, plus: Introduction to the musculoskeletal system, Nerves, vessels and lymphatics of the abdomen, Nerves, vessels and lymphatics of the pelvis, Infratemporal region and pterygopalatine fossa, Meninges, ventricular system and subarachnoid space, Lateral surface of mastoid process of the temporal bone, Lateral half of superior nuchal line of the occipital bone, Accessory nerve (CN XI), branches of cervical plexus (C2-C3), Neck muscles, nerves and vessels(cadaveric dissection) - Prof. Carlos Surez-Quian. A end lines of a sarcomere, and actin filaments are attached E. swallowing. A myoglobin in muscles stores some oxygen What are synonyms for sternocleidomastoid (muscle)? E. biceps brachii and triceps brachii. c. It pushes the charge backward. plantar flexion, Triangular muscles, like the pectoralis major are also called _____ muscles. 2. What is the antagonist of the Quadratus Lumborum (Lateral trunk flexion)? B. quadriceps femoris It has two heads that meld to form one insertion. D. Pectoralis minor. The SCM muscle group can contain a whopping seven trigger points, making it's trigger point density one of the highest in the body. What is the antagonist of the Teres Major (Adducts humerus)? Which of the following is found in the posterior group of forearm muscles? A. up. B. longissimus capitis C. laterally flex the neck. Which of the following is not an intrinsic muscle of the head? E. flexion and abduction of the arm, . What is the antagonist of the Levator Scapulae (Elevate scapula)? anterior, choose all that apply: An antagonist for a muscle on the posterior side of the thigh would be found on the: Which statement is NOT true of antagonistic muscles? b) 241Am{ }^{241} \mathrm{Am}241Am. The sternocleidomastoid muscle plays a central role in the formation of the triangles of the neck. D. function and size. The, Which muscle acts as an antagonist to trapezius? A. B sacrospinalis group A orbicularis oris (a) the erector spinae (b) the rhomboid group (c) the splenius group (d) the scalenes (e) the transversospinalis. fulcrum-pull-weight Which muscle fixes the clavicle or elevates the first rib? Which of the following muscles is innervated by the trigeminal nerve (CN V)? C. sternothyroid and buccinator. A. erector spinae Antonyms for sternocleidomastoid (muscle). What is the antagonist of the Middle Portion Trapezius (Retract scapula)? E. quadratus lumborum, Which abdominal wall muscle inserts on the 10th to 12th ribs and rectus sheath? A carbon dioxide D. flexor digitorum profundus C. abductors. external intercostals A. crossing your legs B. However, the second heart field has recently been identified as an additional source of myocardial progenitor cells. Which of the following muscles is unique, in that it acts as its own antagonist? A. vomiting. B. childbirth. a. pectoralis major B. insert and sometimes originate on skin and connective tissue. Some of the antagonistic pairs are as follows: Biceps and triceps Gluteus maximum and hip flexors Hamstrings and quadriceps Pectoralis major and latissimus dorsi in this case, it's the upper trapezius and another muscle in the front of the neck called sternocleidomastoid. What is the antagonist of the Adductor Magnus (adduction of femur)? C. C. extensor carpi radialis brevis. What is the antagonist of the Brachioradialis (Flexion of forearm)? E. raises the eyelid. D depolarization is stimulated by cholinesterase, In the sliding filament mechanism of muscle contraction, the proteins that inhibit contractions are: A. rectus abdominis B. transversus abdominis C. erector spinae D. latissimus dorsi. Accessory muscles of inhalation include? The sternocleidomastoid is the prime mover and the splenius cervicis is the antagonist. B tetanus Do you experience neck pain at work? The last feature by which to name a muscle is its action. When an intramuscular injection is given in the anterior aspect of the thigh, the injection is in the The trapezius muscle is a large, triangular, paired muscle located on the posterior aspect of the neck and thorax. D. chubby cheeks. C. serratus anterior Antagonist - drug that inhibits or slows activity to receptor -1 - increases mean blood pressure by vaso constriction. A gluteus medius The SCMs on each side of your body course from the breastbone and collar bone in the upper part of the chest to the back of the head. The primary function of the deep muscles of the thorax, such as the intercostals, is to promote __________. The sternocleidomastoid muscle (SCM) is an important landmark in the neck which divides it into an anterior and a posterior triangle. How does the serratus anterior function as an antagonist to the rhomboid muscles? D. extensor digitorum longus E. trapezius, hold the head of the humerus in the glenoid fossa of the scapula, The rotator cuff muscles C. urination. In the body's lever systems, the C. interspinales C. pectoralis minor B. contributes to pouting. (c) equal for both wells? C teres major Define each term. The sternocleidomastoid Match the action with its appropriate arm muscle name: Flexes forearm at elbow joint and supinates forearm biceps brachii The external intercostal muscles are used primarily in __________. D. causes crow's feet wrinkles. This article will discuss the anatomy, function and clinical relations of the sternocleidomastoid muscle. B. soleus It can also occur with certain health conditions, such as asthma and. D. intrinsic muscles. a. teres major b. infraspinatus c. latissimus dorsi d. subscapularis, Holds other joints in position during contraction a) Acetylcholine b) Antagonist muscle c) Synergist muscle d) Fixator muscle, Which of the following muscles is an important elevator of the scapula? D the frontal lobes of the cerebellum initiate muscle contraction, The direct energy source for muscle contraction is: joint act as a fulcrum. What is the antagonist of the Iliocostalis (Spine extension)? C end lines of a sarcomere, and myosin filaments are attached B. pectoralis minor A. extend the neck. B. sartorius D. vastus medialis Sphincters have a __________ arrangement of fascicles. C. inflammation of the gastrocnemius. C. vastus lateralis. A) The sternocleidomastoid is the prime mover, and the splenius cervicis is the fixator. Organisms 6. The radial pulse can be felt just lateral to the tendon of the B creatine phosphate E. gracilis, Which muscle abducts and flexes the thigh? A. infraspinatus D. tensor fascia latae. Which of these muscles is located on the ventral (anterior) side of the body? E. deltoid, . B pectoralis major A. biceps femoris. C gluteus maximus Which of the following muscles contracts during forced expiration? C. internal abdominal oblique Anatomy of the Respiratory System The function of the respiratory system is to obtain oxygen from the atmospheric air Oxygenating all cells of the body Obtains oxygen from atmospheric air, alveoli is where gas exchange occurs Oxygen diffuses from the blood Ventilation:taking oxygen in and exhaling co2 (breathing) inspiration : transport of oxygen through alveoli . E. flexes the shoulder. a) temporalis. The anterior triangle is delimited by the posterior border of the SCM, the inferior border of the mandible inferiorly, and the medial line of the neck medially. D sarcolemma, At the neuromuscular junction, the sacrolemma contains: A. iliopsoas. The pair consists of muscles wherein one contracts while the other relaxes. The brachial plexus should lie between these two muscles. C. extensor digitorum longus bones serve as levers. The sternocleidomastoid is innervated by the accessory nerve . D trapezius, The muscle on the posterior side of the trunk that extends and adducts the arm is the: The prime mover of arm flexion is the __________. Which of the following statements is correct? A. trapezius A. B. obliquely. A flex the leg What is the antagonist of the Extensor Digitorum Longus (Toes 2-5 extension)? /Which muscle helps us to rotate the head? D. posterior compartment syndrome. Apply a downward pressure. Does tightness and tension in your neck keep you from getting to sleep at night? D. extensor carpi radialis brevis What is the antagonist of the Triceps Brachii (extension of forearm)? E. psoas minor. D. tensor fasciae latae 1 Definition. Read more. Register now Semispinalis Capitis, etc. D. causes crow's feet wrinkles. a. Biceps brachii b. Triceps brachii c. Jaw d. Tongue. B depolarization creates a reversal of charges D. insertion. three, moose, plane. (c) Transverse cervical. What is this muscle called? E. gracilis, Which of the following is the longest muscle in the body? B. adduction of the arm. - gastrocnemius tendon at the ankle: first-class lever, biceps brachii at the elbow; third-class lever, Identify the action of the transversus abdominis. What is the antagonist of the Upper Portion Trapezius (Elevate scapula)? Assume that the only force acting on him during the collision is that due to the ground. A. interossei palmaris movement of Vastus lateralis and Vastus medialis. - the nervous system's control of the muscle, the nervous system's control of the muscle. D. triceps brachii B. soleus C. biceps femoris B. adducts and laterally rotates the arm. D muscle fibers must have oxygen to complete cell respiration, The term "oxygen debt" means C. trapezius A. Sternocleidomastoid. 10. The deep muscles of the neck, levator scapulae and middle scalene muscle are supplied by which nerve? The most powerful muscle in the body is the ________. E. blood accumulation around the gastrocnemius. Muscles that elevate the jaw and close the mouth include the An agonist muscle is a muscle that is primarily responsible for the action being demonstrated. B. infrahyoid What is the antagonist of the Gastrocnemius (Plantarflexion)? B. thumb; little finger B muscle tone B. the end of the muscle where the action occurs. What is the antagonist of the Spinalis (Spine extension)? E. Scalenes. If abdominal muscles are contracted while the vertebral column is fixed this will aid in The name has the origin of the Latin words: sternon = chest; cleido = clavicle and the Greek words: mastos = breast and eidos = shape, form. D. extensor digitorum longus Which of the following best describes the orbicularis oris? Which of the following muscles is part of the rotator cuff? B. triceps brachii serratus anterior The major head flexor muscles are the __________. . Which large muscle has an attachment on the external occipital protuberance and extends the neck? The sternocleidomastoid and trapezius muscles are located within the investing fascia of the neck (Figure 25-2A).. C. abductor pollicis longus The antagonist of the splenius capitis muscle is the Sternocleidomastoid. E. flexor carpi radialis. Write down equations to describe the alpha decay of the following atoms: D. multifidus insertion D plantar flex the foot, Which muscle is NOT paired with its correct function? What is the antagonist of the Serratus Anterior (Protract scapula)? All of these muscles working together can create an efficient, consistent stream of air that will help a singer create a strong and beautiful . Muscle antagonists In order to maintain a balance of tension at a joint we also have a muscle or muscles that resist a movement. C. fulcrum is the part being moved. A. erector spinae When you say "ah" and stick out your tongue, which muscle do you use? A. pectineus The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. levator scapulae B. The thenar muscles are involved in controlling the ____; the hypothenar muscles control the ____. The sternal head originates from the manubrium of sternum, while the clavicular head from the medial thirdof the clavicle. D increase the blood supply within muscles, The muscle on the lateral surface of the shoulder that abducts the arm is the C twitch/tetanus b) Levator palpebrae superioris. inversion A. supraspinatus This is an example of muscles working as. D. rhomboidal. Identify two muscles that are antagonists of tibialis posterior. A. auricularis E. suprahyoid muscles. What is the antagonist of the Internal Oblique (Trunk flexion)? E. fibularis brevis, Which muscle plantar flexes the foot? C sustained muscle contractions D there is too little oxygen in the lungs, In the neuromuscular junction, the membrane of the muscle fiber is called the: The orbicularis oculi muscle Rectus Abdominus, External oblique, Internal oblique. . What muscle(s) serves as an antagonist to the biceps? B. serratus anterior C gluteus medius C. triceps brachii b) gastrocnemius. An antagonist is usually a character who opposes the protagonist (or main character) of a story, but the antagonist can also be a group of characters, institution, or force against which the protagonist must contend. The sternocleidomastoid muscles help to flex the neck. . choose all that apply. Neck Muscles Globus Pallidus Cervical Vertebrae Basal Ganglia Facial Muscles Oculomotor Muscles Neuromuscular Junction Hand. C cholinesterase Iliopsoas, Sartorius, Tensor Fasciae Latae. (2) right medial rectus The sternocleidomastoid muscle (SCM for short and also know as the musculus sternocleidomastoideus) is a paired superficial muscle in the anterior portion of the neck responsible for flexing. C extend the vertebral column Which of the following muscles helps to open the mouth (depress the mandible)? Damage to which of the following muscles would hinder inspiration? bulbospongiosus B. B. flexor carpi radialis. A gaseous mixture with a molar analysis of 20%CO220\ \% \mathrm{CO}_220%CO2, 40%CO40\ \% \mathrm{CO}40%CO, and 40%O240\ \% \mathrm{O}_240%O2 enters a heat exchanger and is heated at constant pressure. (c) equal for both wells? Dimitrios Mytilinaios MD, PhD Contracting the trapezius muscle would A. puckers the mouth for kissing. D. gluteus maximus. external anal sphincter C buccinator Extensor Carpi Radialis Longus, Extensor Carpi Ulnaris, Extensor Carpi Radialis Brevis. E. vastus lateralis, . E. vastus intermedius, . . A negative/positive The muscle shape that has the capacity to shorten to the greatest degree is Muscles that work like this are called antagonistic pairs. E. lifting weight with your arm. weight-fulcrum-pull Match the word to its correct meaning: Rectus. D. subclavius C. psoas major and iliacus. A. tibialis posterior Choose the letter that best answers the question or completes the statement. fulcrum-weight-pull, internal intercostals, transversus thoracis, choose all that apply: A. fix the scapula in place. A. Frontalis B. Lateral rectus C. Sternocleidomastoid D. Masseter E. Hyoglossus. Understand the anatomy of the face and neck and learn how many muscles are in and about the face's muscular system. A increased heart rate pumps more blood to muscles D. teres major Sternocleidomastoid muscle, along with the trapezius muscle , is invested by the superficial layer of the deep cervical fascia, which splits around it. a. buccinator b. temporalis c. masseter d. orbicularis oris. C. external intercostals. A quadriceps femoris C. interspinales 5. When both muscles of this pair are contracted simultaneously, they flex the neck forward. the end of the muscle where the action occurs. E. zygomaticus and buccinator. D. back muscles are not very strong. The type of muscle that functions as a sphincter is C. contributes to laughing and smiling. A muscle that stabilizes the origin of the prime mover (i.e. parallel, List the arrangement of components found in a third-class lever. B. gastrocnemius 2 and 4 D. transversus abdominis Holds origin of a moving muscle stable a) Acetylcholine b) Antagonist muscle c) Synergist muscle d) Fixator muscle, Which of the following muscles would be the most helpful for forceful expiration? C. peroneus tertius E. triceps brachii. d) zygomaticus major. Match the muscle with its correct origin and insertion: Temporalis, Origin: temporal fossa E. quadratus lumborum, Which abdominal wall muscle is the most superficial of the oblique muscles? What is the antagonist of the Deltoid (Abduct humerus)? Become a Study.com member to unlock this answer! B ATP C impulses from the brain are needed for voluntary movement Sternocleidomastoid: a) used in chewing b) muscle of head or neck c) mandible d) cranium e) atlas f) muscle that move upper extremity g) suicide bags h) epiphysis i) cutaneous j) muscle that move lower extremity. The prime mover for flexion of the thigh is the __________ muscle. C. extensor pollicis longus. B sacrospinalis C. Diaphragm. C myoglobin in blood plasma D. multifidus What is the antagonist of the Lower Portion Trapezius (Depress scapula)? What is the antagonist of the Extensor Carpi Radialis Brevis (wrist extension)? A. supinator D. deltoid. a) Biceps femoris b) Gluteus medius c) Tensor fasciae latae d) Adductor longus e) Rectus femoris. The main forearm extensor is the __________. A sarcolemma C less permeable to sodium ions The muscle that divides the ventral body cavity into the thoracic and abdominopelvic cavities is the __________. A. pectoralis major and teres major. Which of the following muscles performs cervical extension only? D gastrocnemius, The muscle on the anterior thigh that extends the lower leg is the: A. rectus abdominis [2] It protects the vertical neurovascular bundle of neck, branches of cervical plexus, deep cervical lymph nodes and soft tissues of neck from damage [2 . Which of the following muscles is involved in chewing gum? DOI: 10.1016/S0924-980X(96)96554-6 Corpus ID: 35984278; Effects of experimental muscle pain on muscle activity and co-ordination during static and dynamic motor function. The antagonist opposes that movement in a complementary way by performing the opposite action to allow for a return to the original position. (a) greater for well 1, D. vastus medialis D. extensor hallicus longus Match the action with its appropriate arm muscle name: Flexes forearm at elbow joint and supinates forearm. C. biceps femoris B iliopsoas and quadriceps femoris D. the stationary end of the muscle. An equilibrium mixture of CO2,CO\mathrm{CO}_2, \mathrm{CO}CO2,CO, and O2\mathrm{O}_2O2 exits at 3000K,1.5bar3000 \mathrm{~K}, 1.5\ \text{bar}3000K,1.5bar. Biceps Brachii, Brachialis, Brachioradialis. C. A. forearm. A. A. represent a combination of first-class and second-class lever systems. What are the muscles in the neck and the chest area? trapezius, Anatomy and Physiology: The Unity of Form and Function, Andrew Russo, Cinnamon VanPutte, Jennifer Regan, Philip Tate, Rod Seeley, Trent Stephens, Week 1: Psychopathology (History, Classificat, Honors English Final (finished sorry forgot t. B extend the leg Of the following muscles of the forearm, which one rotates the forearm to turn the palm upwards? C. ring finger; thumb a. pectoralis minor b. infraspinatus c. rhomboid major d. serratus anterior. Platysma and the sternocleidomastoid muscle A loose connective tissue layer called the superficial cervical fascia is present between the platysma and the sternocleidomastoid muscle, which allows an easy glide of the platysma over the sternocleidomastoid. A latissimus dorsi What anterolateral neck muscle will cause lateral neck flexion? E. biceps femoris. E. orbicularis oris, Raising the eyebrows is the action of the _____ muscles. A gastrocnemius and soleus D center lines of a sarcomere, and myosin filaments are attached, During a state of polarization, the sacrolemma has a ______ charge outside and a ______ charge inside. The Sternocleidomastoid Trigger Points. B sarcomere D masseter- raises mandible, Which muscle is NOT paired with a synergist? An antagonist muscle is in opposition to a prime mover in that it provides some resistance and/or reverses a given movement. B hamstring group E. rhomboideus major, Which muscle retracts, rotates, and fixes the scapula? Sternocleidomastoid is the most superficial and largest muscle in the front portion of the neck. B. What is the antagonist of the Semimembranosus (knee flexion)? convergent arrangement of fascicles; fan-shaped muscle C. thenar muscles Select all that apply. A. tibialis anterior It is thick and narrow at its center, but broader and thinner at either end. Our experts can answer your tough homework and study questions. What is the antagonist of the External Intercostals (Elevate ribs)? The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. C acetylcholine to transmit the impulse to the muscle fiber B myosin and actin Antagonists counter the action of a prime mover. Match the following muscle action involving facial expression with its appropriate muscle: Sphincter muscle of the eyelids, which permits squinting and blinking. A third charge is placed so that the entire three-charge system is in static equilibrium. Rectus Abdominus, external oblique, internal oblique B. hyoglossus A synergist c. A fixator d. An antagonist. posterior Also, the muscle works with the scalene muscles in the neck during forced inspiration while breathing. A. levator ani only. D. longus capitis E. down. Their antagonists are the _____ muscles. Fixators hold joints in place, so movement does not occur. C. location and size. C. biceps femoris C oxygen Major Skeletal Muscle Synergists-Biol 241 Sap, The Language of Composition: Reading, Writing, Rhetoric, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses, Byron Almen, Dorothy Payne, Stefan Kostka, Lecture 27: The Federal Executive & Bureaucra. E. iliotibial tract, . D. levator palpebrae superioris The muscles of the anterior group of forearm muscles are primarily What does the term levator mean? What is the antagonist of the Flexor Digitorum Longus (Toe 2-5 flexion)? Which statement is NOT true of organ systems and movement? Get access to this video and our entire Q&A library, Function & Anatomy of the Muscles of the Face, Neck & Back. A twitch/prolonged twitch D. extensor digitorum longus C. triangular. B. flexor carpi radialis A. auricular A. supinate the forearm. E. psoas minor, Which back muscle inserts on the ribs and vertebrae? inferior oblique the long axis E. teres major. Neck Elongation. c. Which two muscles in that group are synergists? Laura M. Kok, .Rob G.H.H. D. ______ is a stiff neck due to spasmodic contraction of the neck muscles that pull the head toward the affected side.