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Flashcards in Lab Exam 1 Deck (32):
0

What is innervating the teres major?

Subscapular nerve

1

What is innervating the subscapularis?

Subscapular nerve

2

Where is the supinator located?

On the radial side up near elbow

3

Where do all flexors originate?

Medial epicondyle

4

Where does the triceps brachii insert?

Olecranon process - elbow, end of the ulna

5

What is the origin of the long head of the triceps?

Infraglenoid tubercle of the scapula

6

What is the origin of the medial head of the triceps?

below the radial sulcus (groove)

7

What is the origin for the lateral head of the triceps?

Above the radial sulcus (groove)

8

Where does the long head of the biceps brachii originate?

Supraglenoid tubercle - goes up through intertubercular sulcus

9

Where does the short head of the biceps brachii originate?

Coracoid process of the scapula

10

What is the insertion of the biceps brachii?

Radial tuberosity and the bicipital aponeurosis into deep fascia on medial part of forearm

11

What is the coronoid process?

The little sticky outey bone at the elbow on the ulna, under the trochlear notch.

12

What is the origin of the brachialis?

Anterior surface of the humerus, distal half

13

What is the insertion of the brachialis?

Coronoid process and tuberosity of the ulna

14

What is the origin of the flexor digitorum superficialis?

Medial epicondyle of the humerus

15

What is the insertion of the flexor digitorum superficialis?

Anterior margins on the bases of the middle phalanges of the four fingers

16

What is the origin of the flexor digitorum profundus?

Upper 3/4 of the volar and medial surfaces of the body of the ulna, interosseous membrane and deep fascia of the forearm

17

What is the insertion of the flexor digitorum profundus?

Base of the distal phalanges of the fingers

18

Where does the flexor pollicis longus originate?

The middle 2/4 of the volar surface of the radius and the adjacent interosseus membrane

19

Where does the flexor pollicis longus insert?

The base of the distal phalanx of the thumb.

20

Where does the extensor pollicis longus orginate?

Middle third of posterior surface of ulna, interosseous membrane

21

Where does the extensor pollicis longus insert?

Thumb, distal phalanx

22

Where does the extensor pollicis brevis originate?

Radius and the interosseous membrane

23

Where does the extensor pollicis brevis insert?

Thumb, proximal phalanx

24

What innervates the dorsal interossei of the hand?

Deep branch of ulnar nerve

25

What innervates the palmar interossei muscles of the hand?

Deep branch of the ulnar nerve

26

What innervates the lumbricals of the hand?

1 and 2 - median nerve
3 and 4 - deep branch of ulnar nerve

27

What is the function of the subscapularis?

internal rotation (rotates head of humerus medially)

28

What are the functions of the infraspinatus and the teres minor?

Part of rotator cuff, laterally rotate the humerus, transverse adduction

29

What is the function of the teres major?

Medial rotator, adductor of the humerus, stabilizes humoral head in the glenoid cavity

30

What is the function of the supraspinatus muscle?

Abductor of the arm, part of rotator cuff, stabilizes head of the humerus

31

What is the function of the deltoid?

abduction of the shoulder, transverse extension, prevents dislocation of humeral head