3.1 Upper Limb Anatomy Flashcards Preview

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Flashcards in 3.1 Upper Limb Anatomy Deck (51):
1

What nerve is most likely damaged if a break occurs at the surgical neck?

Axillary nerve

2

What nerve is most likely damaged if a break occurs at the radial groove?

Radial nerve

3

What nerve is most likely damaged if a break occurs at the distal humerus?

Median nerve

4

What nerve is most likely damaged if a break occurs at the medial epicondyle?

Ulnar nerve

5

What are the Trapezius attachment points?

C-spine, T-spine, scapular spine, and clavicle

6

What are the actions of the Trapezius?

Scapular rotation and retraction

7

Action of the Rhomboids?

Scapular retraction

8

Action of the Levator Scapula?

Scapular elevation

9

Attachment of the Serratus Anterior?

Medial border of scapula to ribs

10

Action of Serratus Anterior?

Scapular protraction

11

Innervation of Serraturs Anterior?

Long thoracic nerve

12

Injury to the Long thoracic nerve causes what?

Scapular winging

13

Deltoid Attachment?

Scapular spin, clavicle, deltoid tuberosity

14

Actions of Deltoid?

Abduction, flexion, extension

15

Innervation of the deltoid?

Axillary Nerve

16

What are the rotator cuff muscles?

1) Supraspinatus
2) Infraspinatus
3) Teres minor
4) Subscapularis

17

Which muscle of the posterior arm crosses both shoulder and elbow joints?

Long head of the triceps brachii

18

Boundaries of the cubital fossa?

1) Line between the lateral and medial epicondyles
2) Pronator tores
3) Brachialradiallis

19

Contents of the cubital fossa?

1) Radial Nerve
2) Biceps Tendon
3) Brachial Artery
4) Medial Nerve

20

Which subcutaneous vein travels along the lateral side of the arm?

Cephalic vein

21

Which subcutaneous vein travels along the medial side of the arm?

Basilic vein

22

Action of Pectoralis Major?

Adducts and medially rotates humerus; draws scapula anteriorly and inferiorly

23

Innervation of the pectorals major?

Lateral and medial pectoral nerves

24

Pectoralis minor Innervation?

Medial pectoral nerve

25

Action pectoralis minor?

Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall

26

Serratus anterior action?

Protrracts scapula and holds it agains thoracic wall; rotates scapula

27

Serratus anterior innervation?

Long thoracic nerve

28

Trapezius innervation?

Spinal accessory nerve and C3/C4 spinal nerves

29

Trapezius Action?

Elevates, depresses, and retracts scapula. Rotate glenoid cavity superiorly

30

Latissimus dorsi innervation?

Thoracodorsal nerve

31

Latissimus dorsi actions?

Extends adducts and medially rotates humerus

32

Levator Scapulae action?

Elevates scapula and rotates glenoid cavity inferiorly

33

Levator Scapulae innervation?

Dorsal scapular nerve and cervical nerves

34

Rhomboid minor and major innervation?

Dorsal scapular nerve

35

Rhomboid minor and major action?

Retract scapula and rotate glenoid cavity inferiorly

36

Deltoid Innervation?

Axillary nerve

37

Supraspinatus innervation?

Suprascapular nerve

38

Action of supraspinatus?

initiates and assists deltoid in abduction of arm and acts with rotator cuff muscles

39

Infraspinatus innervation?

suprascapular nerve

40

Action of infraspinatus?

Latterally rotate arm and acts with rotator cuff muscles

41

Teres minor action?

Laterally rotates arm and acts with rotator cuff muscles

42

Teres minor innervation?

Axillary nerve

43

Teres major action?

Adducts and medially rotates arm

44

Teres major innervation?

lower sub scapular nerve

45

Subscapularis action?

Medially rotates arm

46

Biceps brachii action?

Supinates forearm and when it is supine flexes forearm, short head resists dislocation of shoulder.

47

Biceps brachii innervation?

Musculocutaneous nerve

48

Coracobrachialis action?

Helps flex and adduct arm and resists dislocation of shoulder.

49

Coracobrachialis innervation?

Musculocutaneous nerve

50

Triceps brachii innervation?

Radial nerve

51

Triceps brachii action?

Extensor of forearm, log head resists dislocation of humerus, especially important during adduction.