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LAB FINAL REVIEW
MUSCULAR SYSTEM
| Question | Answer |
|---|---|
| The frontal belly of the occipitofrontalis muscle causes what action? | Wrinkling the brow (forehead) |
| When a person blinks, she is using her | orbicularis oculi |
| Of the muscles that move the glenohumeral joint, two attach proximally on the axial skeleton. Which ones? a: Latissimus dorsi b: Deltoid c: Pectoralis major d: Teres major e: Coracobrachialis | a and c |
| All of these muscles, except one, have their proximal attachment on the scapula. Select the exception. | pectoralis major |
| All of the following muscles that move the glenohumeral joint attach distally to the humerus except the | triceps brachii |
| The pronator teres and pronator quadratus cause pronation of the forearm. What muscle opposes this movement? | supinator |
| Of the muscles that move the glenohumeral joint, two attach proximally on the axial skeleton. Which ones? a: Latissimus dorsi b: Deltoid c: Pectoralis major d: Teres major e: Coracobrachialis | a and c |
| All of these muscles, except one, have their proximal attachment on the scapula. Select the exception. | pectoralis major |
| All of the following muscles that move the glenohumeral joint attach distally to the humerus except the | triceps brachii |
| The principal elbow flexors located on the anterior side of the humerus are the a: biceps brachii b: brachialis c: brachioradialis d: deltoid e: trapezius | a, b, c |
| What muscle is known as the “swimmer’s muscle”? | latissimus dorsi |
| Which muscle is the prime extensor of the elbow joint? | triceps brachii |
| Besides the supinator, which other muscle is a powerful supinator of the forearm? | biceps brachii |
| These muscles elevate the ribs and have their origin on the inferior border of the superior rib and their insertion on the superior border of the inferior rib. | brachialis |
| Which of the following elevates the ribs? | external intercostals |
| The rectus abdominis is classified as a convergent muscle. | FALSE |
| The deepest of the abdominal muscles are the_________ muscles. | transversus abdominis |
| Contraction of the rectus abdominis results in rotation of the vertebral column. | FALSE |
| Which muscle forms the traditional “six-pack” of a well-toned abdominal wall? | rectus abdominis |
| The rectus abdominis inserts on the _________ process, as well as on ribs 5–7. | xiphoid |
| Which of the abdominal muscles is innervated by spinal nerves T7–T12? | rectus abdominis |
| Which of the abdominal muscles has its fibers running in an inferomedial direction? | external oblique |
| Which is not one of the hamstring muscles? | rectus femoris |
| Which is one of the largest muscles in the body and the one most responsible for extending and laterally rotating the thigh? | gluteus maximus |
| Which muscle does not attach proximally to the ischial tuberosity? | adductor longus |
| Which is the longest muscle of the body? | sartorius |
| With three seconds left on the clock, Mia breaks free and scores the winning goal in her soccer game. Of the muscles listed, select the one with the primary action in extending the leg for kicking. | quadriceps femoris |
| Which muscle is the primary dorsiflexor of the foot at the ankle? | tibialis anterior |
| The quadriceps femoris is a composite muscle with four heads that work together to flex the leg. | FALSE |
| If you were to remove the gastrocnemius muscle, you would expose the | soleus |
| These two muscles are known as the triceps surae and together are the most powerful plantar flexors of all of the leg muscles. | gastrocnemius and soleus |
| All of the muscles listed, except one, are innervated by the deep fibular nerve. Select the exception. | gastrocnemius |
| What two muscles attach distally to the calcaneal tendon? | gastrocnemius and soleus |
| This muscle has its inferior attachment on the manubrium and sternal end of the clavicle and its superior attachment on the mastoid process. | sternocleidomastoid |
| When the left and right splenius capitis contract together, the resulting movement is | extension of the neck |
| Contraction of the serratus posterior inferior contributes to forced expiration. | TRUE |
| Which of the following muscles elevates and retracts (adducts) the scapula? | rhomboid major |
| The_________ is a large, saw-toothed, flat, fan-shaped muscle positioned between the ribs and the scapula. | serratus anterior |
| There are three gluteal muscles. Select the one that is correctly matched with its primary action. | gluteus medius; abducts the thigh |
| The large muscle in the calf that has lateral and medial heads is the_________, | gastrocnemius |
| The muscles between the ribs that function to depress the ribs during forced expiration (exhalation) are the_________ intercostal muscles. | internal |
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