Axilla, Arm and Elbow Flashcards Preview

BU Anatomy > Axilla, Arm and Elbow > Flashcards

Flashcards in Axilla, Arm and Elbow Deck (31):
1

Anterior border of Axilla

Pectoralis Major and Pectoralis Minor

2

Posterior border of Axilla

Subscapularis, Latissimus Dorsi and Teres Major - scapula

3

Medial Border of Axilla

Ribs 1-4 and intercostal spaces

4

Lateral Border of Axilla

Intertubercular groove of humerus

5

Base of Axilla

Skin and Fascia of Arm

6

Apex of Axilla

Convergence of Clavicle, Scapula and Rib 1

7

Contents of the Axilla

Axillary Artery, Axillary Vein, Lymphatics and Brachial Plexus

8

Articulations involved in the Elbow Joint?

Humeroulnar - Hinge
Humeroradial - Modified Hinge
Proximal - Radioulnar

9

Function of Annular Ligament?

Encircle head of radius and keep it against the ulna

10

Monteggia Fracture

dislocation of proximal radioulnar joint with a forearm fracture

11

Lateral collateral ligament function?

Protects against medial deviation of forearm

12

Medial collateral ligament function?

Protects against lateral deviation of forearm; Medial epicondyle of humerus to coronoid and olecranon process

13

CRTU

Capitulum of humerus with radius
Trochela of humerus with ulna

14

Supination

Radial head spins on capitulum

15

Name the Anterior Compartment Arm muscles

Biceps Brachii
Brachialis
**Coracobrachialis = intrinsic shoulder muscle

16

Name the Posterior compartment arm muscles

Triceps Brachii
Anconeus
Brachioradialis

17

Biceps Brachii Attachments

2 Heads
Long head: Supraglenoid tubercle
Short head: Coracoid process of scapula
Radial tuberosity

18

Biceps Brachii action

Flexion of elbow

19

Biceps brachii Innervation

Musculocutaneous Nerve

20

Brachialis Attachments

Distal anterior humerus
Coronoid process of ulna

21

Brachialis Action

Flexion of forearm/elbow

22

Brachialis Innervation

Musculocutaneous Nerve

23

Triceps Brachii Attachments

Long head: infraglenoid tubercle
Lateral head: posterior sup. humerus
Medial head: posterior inf. humerus
I: olecranon of ulna

24

Triceps Brachii Action

Extension of elbow

25

Triceps Brachii Innervation

Radial Nerve

26

Anconeus Attachments

Lateral epicondyle of humerus
Olecranon of ulna

27

Anconeus Action

Extends forearm

28

Anconeus Innervation

Radial Nerve

29

Brachioradialis Attachments

Lateral supracondylar ridge
Lateral, distal radius

30

Brachioradialis Action

Elbow flexion

31

Brachioradialis Innervation

Radial Nerve