front 1 A muscle that opposes, or reverses, a particular movement is a(n) ________. a.agonist (prime mover) b.antagonist c. fixator d.synergist | back 1 b. |
front 2 A nursing infant develops a powerful sucking muscle that inserts to the muscle which adults also use for whistling (orbicularis oris). What is this muscle called? A.buccinator B. platysma C.zygomaticus D.masseter | back 2 A. |
front 3 At the grocery store a cute, little curly-haired child is standing behind you in line. You turn around for a moment and she sticks her tongue out at you. Which tongue muscle did she use? A.orbicularis oris B.hyoglossus C. stylohyoid D. genioglossus | back 3 D. |
front 4 First-class levers ________. A.are typified by tweezers or forceps B.have load at one end of the lever, fulcrum at the other, and effort applied somewhere in the middle C.are used when standing on tip-toe D.in the body can operate at a mechanical advantage or mechanical disadvantage, depending on specific location | back 4 D. |
front 5 If L = load, F = fulcrum, and E = effort, what type of lever system is described as LEF? A.first-class lever B.second-class c lever third-class lever d.fourth-class lever | back 5 C |
front 6 If a lever operates at a mechanical advantage, it means that the ________. A.effort is farther than the load from the fulcrum b. load is near the fulcrum and the effort is applied far from the fulcrum c.lever system is useless d.load is far from the fulcrum and the effort is applied near the fulcrum | back 6 b. |
front 7 In general, a muscle that crosses on the anterior side of a joint produces ________. A. adduction B.abduction C.flexion D.extension | back 7 C |
front 8 Paralysis of which of the following muscles would make an individual unable to flex the knee? A.hamstring muscles B. brachioradialis C.soleus | back 8 A |
front 9 Paralysis of which of the following would make an individual unable to flex the thigh? A.vastus medialis D.biceps femoris | back 9 C |
front 10 Tennis players often complain about pain in the arm (forearm) that swings the racquet. What muscle is usually strained under these conditions? A.the brachioradialis | back 10 A |
front 11 The ________ extends the great toe. A. tibialis anterior B. gastrocneumius D. extensor hallucis longus | back 11 D |
front 12 The ________ helps keep food between the grinding surfaces of the teeth during chewing. A.buccinator B.mentalis C.orbicularis oris r D. isorius | back 12 A |
front 13 The ________ is a synergist of the latissimus dorsi; it extends, medially rotates, and adducts the humerus. A. teres major B. infraspinatus C. teres minor D. supraspinatus | back 13 A |
front 14 The ________ is known as the "boxer's muscle." A.serratus anterior B. flexor digitorum longus C. biceps brachii | back 14 A |
front 15 The ________ is the main chewing muscle. A. hyoglossus B. lateral pterygoid C. masseter D. buccinator | back 15 C |
front 16 he ________ runs deep to the internal oblique. A.external oblique B.latissimus dorsi t C.ransversus abdominis D. rectus abdominis | back 16 C |
front 17 The ________ tightens the neck and draws the corners of the mouth downward as in expressing horror. A. sternocleidomastoid B. sternohyoid C. platysma | back 17 C |
front 18 The abnormal protrusion of the small intestine through a weak point in the muscle of the abdominal wall is called a ________. A. hyperextension B. pulled muscle C. hernia | back 18 C |
front 19 The most powerful muscle in the body is the ________. A. gastrocnemius B.quadriceps femoris C. gluteus maximus D. rectus abdominis | back 19 B |
front 20 The quadriceps femoris is composed of three "vastus" muscles and the ________. A. rectus femoris B. semimembranosus C.biceps femoris D.semitendinosus | back 20 A |
front 21 The sternocleidomastoid muscle inserts on the ________. A. sternum B. platysma | back 21 D |
front 22 The supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action? A. to flex and adduct the humerus and to act as a synergist of the pectoralis major B. to initiate abduction of the arm, to stabilize the shoulder joint and to help prevent downward dislocation of the humerus C. to extend and medially rotate the humerus and to act as a synergist of the latissimus dorsi D. to help hold the head of the humerus in the glenoid cavity and rotate the humerus laterally | back 22 B |
front 23 What are the levers that operate at a mechanical advantage called? A. functional levers B.speed levers D.dysfunctional levers | back 23 C |
front 24 What do the genioglossus, hyoglossus, and styloglossus muscles have in common? A. All names indicate the relative size of the muscle. B. Each acts synergistically to elevate the jaw. | back 24 D |
front 25 What is a muscle that provides the major force for producing a specific movement called? A. a synergist D. a fixator | back 25 C |
front 26 What is the main factor that determines the power of a muscle? A. the length B. the total number of muscle fibers (cells) available for contraction C. the number of neurons innervating it D.the shape | back 26 B |
front 27 What is the major factor controlling how levers work? B. the direction the load is being moved C. the structural characteristics of the muscles of the person using the lever D. the weight of the load | back 27 A |
front 28 What muscle is primarily responsible for preventing foot drop? A. tibialis anterior B. extensor hallucis longus C. extensor digitorum longus D. fibularis tertius | back 28 A |
front 29 What type of muscle assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts? A. an antagonist B. a prime mover C. a synergist | back 29 C |
front 30 When the term biceps, triceps, or quadriceps forms part of a muscle's name, what does it tell you about the muscle? A. The muscle is able to change direction twice, three times, or four times faster than other muscles, respectively. B. The muscle has two, three, or four insertions, respectively. C. The muscle has two, three, or four origins, respectively. D. The muscle has two, three, or four functions, respectively. | back 30 C |
front 31 Which muscle group is involved when a "pulled groin" occurs? A. thigh adductors B. hamstrings C. quadriceps D. lateral rotators | back 31 A |
front 32 Which muscle(s) is (are) contracted to exhale forcibly? A.internal intercostals and rectus abdominus B.diaphragm alone C.rectus abdominis and diaphragm D.external intercostals and diaphragm | back 32 A |
front 33 Which of the following best describes the orbicularis oris? A. It pulls the lower lip down and back. B. It closes, purses, and protrudes the lips. C. It closes the eye. | back 33 B |
front 34 Which of the following describes a bipennate pattern of fascicles? A. An arrangement in which the fascicles insert into only one side
of a tendon. C. An arrangement of five fascicles on each side of the tendon. C.An arrangement that looks like many feathers side by side. | back 34 B |
front 35 Which of the following describes the suprahyoid muscles? A.They move the pharynx superiorly during swallowing. B.They are a group of muscles that lie superior to the hyoid bone and help form the floor of the oral cavity. C.They are often called strap muscles. D.They depress the larynx and hyoid bone if the mandible is fixed. | back 35 B |
front 36 Which of the following is NOT a member of the hamstrings? A. gracilis B. semitendinosus C.semimembranosus D.biceps femoris | back 36 A |
front 37 Which of the following is NOT a muscle primarily involved in the breathing process? A. latissimus dorsi B. external intercostal i C. nternal intercostal D. diaphragm | back 37 A |
front 38 Which of the following muscles does NOT act in plantar flexion? A. tibialis posterior B. gastrocnemius and soleus C. popliteus | back 38 C |
front 39 Which of the following muscles fixes and stabilizes the pelvis during walking? A. transversus abdominis B. rectus abdominis C. external oblique D.internal oblique | back 39 B |
front 40 Which of the following muscles inserts to the posterior calcaneus via the calcaneal tendon? A. the sartorius C. the gastrocnemius D. the semitendinosus | back 40 C |
front 41 Which of the following muscles is NOT a rotator cuff muscle? A. levator scapulae B. subscapularis C. supraspinatus D. teres minor | back 41 A |
front 42 Which of the following muscles is a flexor of the thigh at the hip? A. gluteus maximus B. vastus lateralis C. adductor magnus D. tibialis posterior | back 42 C |
front 43 Which of the following muscles is involved in crossing one leg over the other to produce the cross-legged position? A. the quadriceps femoris B. the sartorius D. the gastrocnemius | back 43 B |
front 44 Which of the following muscles is involved in inversion at the ankle joint? A. extensor digitorum longus B. fibularis (peroneus) tertius C. tibialis anterior | back 44 C |
front 45 Which of the following muscles is involved in producing horizontal wrinkles in the forehead? A. the frontal belly of the epicranius B. the zygomaticus major C. the temporalis | back 45 A |
front 46 Which of the following muscles is used to form a smile? A. Zygomaticus major B. corrugator supercilli C. mentalis | back 46 A |
front 47 Which of the following muscles serves as a common intramuscular injection site, particularly in infants as the buttocks and arm muscles are poorly developed? A. the vastus lateralis C. the vastus intermedius D. rectus femoris | back 47 A |
front 48 Which of these is NOT a way of classifying muscles? A. the type of muscle fibers B. the type of action they cause C. muscle shape | back 48 A |
front 49 Which of these is the function of the external oblique muscles? A. pull ribs toward one another to elevate the rib cage B. elevate and adduct scapula in synergy with superior fibers of
trapezius D. flex vertebral column and compress abdominal wall | back 49 D |
front 50 Which type of lever is exemplified by the flexing of the forearm by the biceps brachii muscle? A. a first-class lever C. a third-class lever | back 50 C |
front 51 ________ is a powerful forearm extensor at the elbow joint. A. Biceps brachii B. Triceps brachii C. Brachialis D. Brachioradialis | back 51 B |