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Anatomy Test 3 > The arm and forearm > Flashcards

Flashcards in The arm and forearm Deck (146)
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1

Branches of the Brachial Artery

Profunda Brachii (Deep brachial artery)
Superior Ulnar Collateral
Inferior Ulnar Collateral

2

Branches of the Profunda Brachii (Deep brachial artery)

Posterior descending branch (= middle collateral)
Anterior descending branch (= radial collateral)

3

Anterior (Flexor) Compartment Muscles

Biceps Brachii (long and short head)
Brachialis
Coracobrachialis

4

Innervation of the Anterior (Flexor) Compartment

Musculocutaneous Nerve

5

Proximal attachment of long head of biceps brachii

Supraglenoid tubercle of scapula

6

Proximal attachment of short head of biceps brachii

Coracoid process of scapula

7

Distal attachment of Biceps Brachii

Radial tuberosity and fascia of forearm via bicipital aponeurosis

8

Actions of Biceps Brachii

Supinates forearm, when supine will flex forearm
Resists dislocation of shoulder (short head)

9

Blood supply to Biceps Brachii

Brachial artery

10

Innervation of Biceps Brachii

Musculocutaneous nerve (C5, C6)

11

Proximal attachment of Coracobrachialis

Coracoid process of scapula

12

Distal attachment of Coracobrachialis

Middle 1/3 of medial humeral surface

13

Actions of Coracobrachialis

Flexes and adducts arm at shoulder joint
Resists dislocation of shoulder joint

14

Blood supply to Coracobrachialis

Brachial artery

15

Innervation of Coracobrachialis

Musculocutaneous nerve (C5, C6, and C7)

16

Proximal attachment of Brachialis

Distal 1/2 of anterior surface of humerus

17

Distal attachment of Brachialis

Coronoid process and tuberosity of ulna

18

Actions of Brachialis

Flexes forearm at elbow joint

19

Blood supply of Brachialis

Brachial artery

20

Innervation of Brachialis

Musculocutaneous nerve (C5, C6)
Lateral portions may receive radial nerve contributions

21

Posterior (Extensor) Compartment Muscles

Triceps Brachii (Long, Lateral, and Medial heads)
Anconeus

22

Innervation of Posterior (Extensor) Compartment

Radial Nerve

23

Proximal attachment of Anconeus

Lateral epicondyle of humerus

24

Distal attachment of Anconeus

Lateral surface of olecranon, superior part of surface of ulna

25

Actions of the Anconeus

Assists triceps in extension of forearm and stabilizes elbow joint; also abducts ulna during pronation

26

Blood supply of Anconeus

Deep brachial artery

27

Innervation of Anconeus

Radial nerve (C7, C8, T1)

28

Proximal attachment of Long head of Triceps Brachii

Infraglenoid tubercle

29

Proximal attachment of Lateral head of Triceps Brachii

Posterior surface of humerus

30

Proximal attachment of Medial head of Triceps Brachii

Posterior surface of humerus, inferior to radial groove (spiral groove)