Anatomy -practical 4 : glenohumeral joint, anterior and posterior arm, elbow joint

Question 1

What structure lies deep to the coracoacromial ligament?

a. subacromial bursa
b. joint capsule
c. tendon sheath
d. subscapular bursae

Answer 1

a. subacromial bursa

Question 2

what structure lies superior to the tendon of subscapularis?

a. coracoacromial ligament
b. subacromial bursa
c. subscapular bursa
d. trpezoid ligament
e. conoid ligament

Answer 2

c. subscapular ligament

Question 3

Which arteries supply the glenhumeral joint?

a. anterior and posterior circumflex humeral and the suprascapular
b. brachial and suprascapular
c. subclavian, axillary brachial

Answer 3

a. anterior and posterior circumflex humeral and suprascapular

Question 4

the axillary, suprascapular and which other nerves innervate the glenhohumeral joint?

a. median
b. spinal accessory
c. lateral pectoral
d. radial

Answer 4

c. lateral pectoral

Question 5

the elbow is capable only of flexion and extension. what type of joint is the elbow joint?

a. synovial ball and socket
b. synovial saddle
c. synovial hinge
d. fibrous

Answer 5

c.synovial hinge

Question 6

which part of the distal humerus articulates with the radius ?

a. capitulum
b. trochlea
c. conoid fossa
d. lateral epicondyle

Answer 6

a.capitulum

Question 7

what part of the humerus articluates with the ulnar?

a. capitulum
b. trochlea
c. coronoid fossa
d. medial epicondyle

Answer 7

b.trochlea

Question 8

what part of the ulnar articulates with the distal humerus, posteriorly

a. coronoid process
b. radial notch
c. olecranon
d. trochlear notch

Answer 8

d.trochlear notch

Question 9

what part of the ulnar articulates with the distal humerus anteriorly?

a. coronoid fossa
b. radial notch
c. trochlear notch
d. olecranon

Answer 9

a.coranoid fossa

Question 10

what tuberosity is found on the proximal radius ?

a. ulnar tuberosity
b. capitulum tuberosity
c. radial tuberosity
c. trochlea tuberosity

Answer 10

c.radial tuberosity

Question 11

at what point does the proximal radius and ulnar articulate?

a. radial notch of ulnar
b. ulnar notch of radius
c. radial tuberosity of radius
d. ulnar tuberosity of radius
e. unlar tuberosity of ulnar

Answer 11

a. radial notch of ulnar

Question 12

which ligament supports the proximal radioulnar joint between the radial notch of ulnar and head of radius?

a. conoid ligament
b. trapezoid ligament
c. transverse ligament
d. annular ligament

Answer 12

d.annular ligament

Question 13

which ligament/s support the distal radioulnar joint?

a. annular
b. anterior and posterior radioulnar ligamentds
c. anterior radiounlar
d. posterior radioulnar

Answer 13

b.anterior and posterior radioulnar

Question 14

what components make uo the distal radioulnar joint?

a. radial notch of ulnar and head of radius
b. trochlea notch and trochlea
c. capitulum and head of radius
d. ulnar notch of radius and head of ulnar

Answer 14

d. head of ulnar and ulnar notch of radius

Question 15

which muscles supinate the arm?

a. pronator teres and pronator quadratus
b. supinator and biceps brachii
c. supinator and triceps brachii
d. supinator and brachialis

Answer 15

b.supinator and biceps brachii

Question 16

the radial collateral ligament blends with the annular ligament and arises from which structure?

a. coronoid fossa
b. medial epicondyle
c. olecranon
d. lateral epicondyle

Answer 16

d.lateral epicondyle

Question 17

what ligament arises from the medial epicondyle before attaching to the coranoid process and olecranon of the ulnar?

a. conoid
b. transverse
c. ulnar collateral
d. radial collateral

Answer 17

c.ulnar collateral

Question 18

after leaving the axilla and piercing the coracobrachialis what two muscles is the musculocutaneous nerve sandwhiched between before distally emerging laterally to the biceps tendon and brachioradialis ?

a. biceps brachii and brachialis
b. biceps brachi and triceps brachii
c. brachialis teres minor

Answer 18

a. biceps brachii and brachialis

Question 19

what is the correct order for the path of the musculocutaneous nerve?

a. brachioradialis, biceps tendon, biceps brachii, brachialis , corachobrachialis
b. biceps tendon, brachialis, brachioradialis, coracobrachialis , biceps brachii
c. coracobrachialis, biceps brachii, brachialis, biceps tendon, bracioradialis

Answer 19

c. coracobrachialis, biceps brachii, brachialis, biceps tendon, bracioradialis

Question 20

when entering the forearm what does the musculocutaneous nerve become?

a. lateral cutaneous nerve
b. medial cutaneous nerve
c. posterior cutaneous nerve

Answer 20

a.lateral cutaneous nerve (from lateral cord)

Question 21

what nerve innervates the posterior compartment of the arm?

a. radial
b. musculocutaneous
c. radial
d. axillary

Answer 21

a.radial

Question 22

which nerve innervates the muscles of the anterior compartment of the arm?

a. musculocutaneous
b. radial
c. ulnar
d. distal
e. median

Answer 22

a.musculocutaneous

Question 23

how does the radial nerve leave the axilla ?

a. qudrangular interval
b. triangular space
c. triangular interval
d. costocervical canal

Answer 23

c. triangular interval

Question 24

what blood vessel runs in the radial groove with the radial nerve?

a. brachial
b. profunda brachii
c. posterior circumflex humeral
d. axillary

Answer 24

b. profunda brachii

Question 25

after descending in the radial groove what best describes the pathway of the radial nerve? a. runs with profunda brachii artery b. passes anterior to medial epicodyle terminating as a deep branch and a superficial branch c. passes anterior to the lateral epicondyle giving a deep and suoerficiial branch d. passes posterior to lateral epicondyle giving deep and superifical branch e. runs through coracobrachialis, between biceps brachii and brachialis, lateral to biceps tendon and brachioradialis

Answer 25

c. passes anterior to the lateral epicondyle and terminates as a deep and superificial branch

Question 26

what does the deep branch of the radial artery innervate ? a. dorsum of hand b. medial 1.5 digits c. anterior forearm d. posterior forearm

Answer 26

d.posterior forearm

Question 27

what muscles make uo the anterior compartment of the arm? a. biceps brachii, brachialis, coroacobrachialis b. tricpes brachii, aconeus c. teres minor, subscapularis, infraspinatous, supraspinatous

Answer 27

a. biceps brachii, brachiLIS, CORACOBRACHIALIS

Question 28

what muscles make uo the posterior compartment of the arm? a. biceps brachii, brachialis, coroacobrachialis b. tricpes brachii, aconeus c. teres minor, subscapularis, infraspinatous, supraspinatous

Answer 28

b. biceps trachii, anconeus

Question 29

which head of the biceps brachii attaches to the supraglenoid tubercule ? a. long head b. short head c. medial head

Answer 29

a. long head

Question 30

where does the short head of the biceps brachii attach superiorly? a. supraglenoid tuberucle b. glenoid fossa c. lateral clavicle d. coracoid process

Answer 30

d.coracoid process

Question 31

after combining where do the biceps brachii heads insert? a. coracoid process b. radial tuberosity and bicipital aponeurosis c. ulnar tuberosity and bicipital aponeurosis d. acromion process

Answer 31

b.radial tuberosity and bicipital aponeurosis and bicipital aponeurosis

Question 32

patient no longer able to supinate and flex forearm and arm after injury. what anterior compartment muscle is likely to be damaged? a. biceps brachii b. brachialis c. coracobrachialis d. triceps brachii

Answer 32

a. biceps brachii

Question 33

what muscle is the primary flexor of the elbow joint? a. biceps brachii b. triceps brachii c. brachialis d. brachioradialis

Answer 33

c.brachialis

Question 34

what muscle arises from the medial and lateral aspects of the shaft of the humerus and inserts into the tuberosity of the ulna? a.biceps brachii b.brachialis c,brachioradialis d. coracobrachialis

Answer 34

b. brachialis

Question 35

what muscle lies deep to the biceps brachii? a. brachialis b. brachioradialis c. triceps brachii

Answer 35

a.brachialis

Question 36

where does the coracobrachialis arise and insert? a. medial and lateral aspects of humerus to ulna tuberosity b. medial aspect of humerus to coracoid process c. coracoid process to medial aspect of humerus d. coracoid process to radial tuberosity and bicipital aponeurosis

Answer 36

c. coracoid process to medial aspect of the humerus

Question 37

patient unable to flex arm at shoulder following sports injury. what muscle most likely damaged from anterior compartment? a. coracobrachialis b. brachialis c. teres major

Answer 37

a. coracobrachialis

Question 38

The tricpes brachii inserts into the olecranon. which head of the triceps brachii arises from the infraglenoid tubercule? a. medial b. long c. lateral d. short

Answer 38

b.long

Question 39

The tricpes brachii inserts into the olecranon. which head of the triceps brachii arises from the posterior surface of the humerus ? a. medial b. long c. lateral d. short

Answer 39

a.medial

Question 40

The tricpes brachii inserts into the olecranon. which head of the triceps brachii arises from the posterior surface superior to the radial groove ? a. medial b. long c. lateral d. short

Answer 40

lateral

Question 41

what is the function of triceps brachii? a. flex at shoulder joint b. extend at shoulder joint c. flex forearm at elbow d. extend forearm of elbow

Answer 41

c.flex forearm at elbow

Question 42

from the lateral epicondyle where does the anconeus muscle insert? a. postolateral aspect of olecranon b. anterolateral aspect of olecranon cmedial aspect of humerus d.ulna tuberosity e. radial tuberosity and bicipital aponeurosis

Answer 42

a.postolateral aspect of olecranon

Question 43

what is the function of the posterior compartment muscles of the arm? a. flexion b. rotation c. extension of arm at shoulder d. extension of forearm at the elbow

Answer 43

d. extension of forearm at the elbow