Limb Anatomy: Superior Limb

The coracoid process of the scapula is a. a site of muscle attachment. b. an extension of the scapular spine. c. the high point of the shoulder. d. an area through which the suprascapular nerve passes.

a. a site of muscle attachment.

Which muscle flexes the elbow joint and supinates the forearm? a. biceps brachii b. supinator c. brachialis d. anconeus

a. biceps brachii

The coracobrachialis muscle shares a common attachment with the a. biceps brachii and pectoralis minor muscles. b. biceps brachii and brachialis muscles. c. biceps brachii and pectoralis major muscles. d. brachialis and pectoralis minor muscles.

a. biceps brachii and pectoralis minor muscles.

From which plexus does the ulnar nerve arise? a. brachial b. cervical c. lumbar d. sacral e. thoracic

a. brachial

Select the structure(s) served by the axillary nerve. a. deltoid muscle b. extensors of the wrist c. flexors of the wrist d. biceps brachii e. diaphragm

a. deltoid muscle

Muscles that move the digits but originate outside the hand are a. extrinsic muscles of the hand b. intrinsic muscles of the hand c. flexor muscles of the hand d. extensor muscles of the hand

a. extrinsic muscles of the hand

The anterior forearm muscles generally provide ________ movements. a. flexion b. abduction c. adduction d. extension

a. flexion

The greater tubercle of the humerus is the distal attachment for which of the following muscles? a. infraspinatus b. deltoid c. subscapularis d. coracobrachialis

a. infraspinatus

Injury of which nerve could cause paralysis of the serratus anterior muscle? a. long thoracic b. dorsal scapular c. radial d. thoracodorsal

a. long thoracic

The superficial anterior forearm muscles all originate on the ___________. a. medial epicondyle of the humerus b. shaft of the radius c. phalanges d. coronoid process of the ulna

a. medial epicondyle of the humerus

Carpal tunnel syndrome may result from repetitive activities that involve flexion of the wrist and compression of the a. median nerve b. ulnar nerve c. tendon of flexor digitorum profundus d. tendon of flexor digitorum superficialis

a. median nerve

Which of the following is NOT a correct description of the location of the brachial plexus? a. on the neck alongside the first four cervical vertebrae b. passes above the first rib posterior to the clavicle c. extends inferiorly and laterally on either side of the last few cervical and first thoracic vertebrae d. enters the axilla

a. on the neck alongside the first four cervical vertebrae

Injury to this nerve, even from an intramuscular injection, could cause wrist drop. What is the name of this injured nerve? a. radial b. ulnar c. median d. sciatic e. tibial

a. radial

Which best describes the latissimus dorsi? a. swimmer's muscle b. trumpeter's muscle c. most important breathing muscle d. boxer's muscle e. workhorse" of the elbow flexors

a. swimmer's muscle

The primary arm muscle used when doing a push-up (when you push back up from a lower position) would be the _______? a. triceps brachii b. biceps brachii c. brachialis d. deltoid

a. triceps brachii

Which of the following muscles make up the rotator cuff? 1. deltoid 2. infraspinatus 3. subscapularis 4. supraspinatus 5. teres major 6. teres minor a. 1, 2, 3, 4 b. 2, 3, 4, 6 c. 1, 3, 4, 5 d. 2, 4, 5, 6

b. 2, 3, 4, 6

Which of the following muscles passes anterior to the fingers and wrist but does not attach to the medial epicondyle of the humerus? a. Flexor digitorum superficialis b. Flexor digitorum profundus c. Extensor digitorum d. none of the above

b. Flexor digitorum profundus

A muscle that flexes and adducts the wrist is the a. flexor carpi radialis b. flexor carpi ulnaris c. flexor digitorum d. palmaris longus

b. flexor carpi ulnaris

Which of the following muscles does not produce movement of the wrist? a. flexor carpi radialis b. flexor pollicis brevis c. extensor carpi ulnaris d. extensor digitorum

b. flexor pollicis brevis

Muscles that extend the forearm are located on the a. anterior surface of the humerus b. posterior surface of the humerus c. anterior surface of the ulna d. posterior surface of the ulna

b. posterior surface of the humerus

Which muscle originates from the medial epicondyle of the humerus AND turns the forearm (pronates) so that the palm faces posteriorly? a. pronator quadratus b. pronator teres c. anconeus d. supinator

b. pronator teres

Select the structure(s) served by the radial nerve. a. deltoid muscle b. triceps brachii c. flexors of the wrist d. skin of superior portion of the chest and shoulder e. diaphragm

b. triceps brachii

Select the structure(s) served by the radial nerve. a. deltoid muscle b. triceps brachii c. flexors of the wrist d. skin of superior portion of the e. chest and shoulder e. diaphragm

b. triceps brachii

Which of the following nerves arise from the brachial plexus? 1. ulnar nerve 2. femoral nerve 3. median nerve 4. obturator nerve 5. axillary nerve 6. musculocutaneous nerve 7. sciatic nerve 8. radial nerve 9. tibial nerve 10. common fibular nerve a. 1-10 b. 2, 4, 7, 9, and 10 c. 1, 3, 5, 6, and 8 d. 3, 4, 6, 8 e. 2, 5, 7, 8

c. 1, 3, 5, 6, and 8

The brachioradialis, brachialis, and biceps brachii muscles combine to _____ the forearm. a. extend b. supinate c. flex d. pronate

c. flex

Select the structure(s) served by the median nerve. a. quadriceps femoris muscle b. extensors of the wrist c. flexors of the wrist d. skin of superior portion of the chest and shoulder d. diaphragm

c. flexors of the wrist

The pectoralis minor muscle a. has a distal attachment on the greater tubercle of the humerus. b. has a distal attachment on the acromion of the scapula. c. may have a proximal attachment from ribs 3 to 5. d. has a proximal attachment from the clavicle and sternum.

c. may have a proximal attachment from ribs 3 to 5.

Whereas superficial flexors in the anterior compartment of the forearm originate from the _____ epicondyle of the humerus, the superficial extensors in the posterior compartment of the forearm originate from the _____ epicondyle of the humerus. a. lateral; medial b. lateral; lateral c. medial; lateral d. medial; medial

c. medial; lateral

A patient received an injection into the triceps muscle. The patient is struggling to extend the wrist and fingers. This patient most likely has an injury to the a. lateral pectoral nerve b. median nerve c. radial nerve d. thoracodorsal nerve

c. radial nerve

Of the muscles that move the forearm, two have proximal attachments on the scapula. They are the biceps brachii and the: a. brachialis b. brachioradialis. c. triceps brachii d. anconeus.

c. triceps brachii

The superficial posterior forearm muscles function to ________ the wrist. a. flex b. pronate c. supinate d. extend

d. extend

The flexor carpi ulnaris and _______________ work together to adduct the wrist. a. extensor carpi radialis b. palmaris longus c. flexor carpi radialis d. extensor carpi ulnaris

d. extensor carpi ulnaris

In order to adduct the second (index) finger, the muscle would most likely be located __________ to the second metacarpal. a. anterior b. posterior c. lateral d. medial

d. medial

All of the following muscles are innervated by the ulnar nerve except a. abductor digiti minimi b. flexor digiti minimi brevis c. opponens digiti minimi d. opponens pollicis

d. opponens pollicis

Which of the following pairs of terms does not correctly match muscle with innervation? a. subclavius; subclavian nerve b. rhomboid major; dorsal scapular nerve c. serratus anterior; long thoracic nerve d. trapezius; median pectoral nerve

d. trapezius; median pectoral nerve