Brachial Plexus to Elbow Flashcards Preview

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Flashcards in Brachial Plexus to Elbow Deck (13):
1

Where does the long head of biceps brachii attach on to superiorly?

Superior glenoid tubercle (running up the inter-tubercular grove)

2

Where does the short head of biceps brachii attach on to superiorly?

Coracoid process of scapula

3

Where does the biceps brachii muscle attach on to inferiorly?

Radial tuberosity

4

Where does the brachialis muscle attach on to inferiorly?

Ulnar tuberosity

5

Where does the long head of triceps brachii muscle attach onto superiorly?

Inferior glenoid tuberosity

6

Where does the triceps brachii muscle attach onto inferiorly?

Olecranon process of elbow

7

In-between which muscles within the posterior triangle of the neck does the brachial plexus emerge from?

Anterior and middle scalene

8

Which nerve innervates teres minor?

Axillary nerve

9

Which muscles does the suprascapular nerve innervate?

Supraspinatous
Infraspinatous

10

Which muscles of the shoulder are NOT innervated by a branch of the brachial plexus? What is their innervation?

Trapezius
Levator scapulae
Innervated by CN XI - accessory nerve

11

Which nerve penetrates coracobrachialis? What is its continuation beyond this point?

Musculocutaneous nerve
Continuation is the lateral cutaneous nerve of arm

12

Where does the profunda brachii artery (branch of the brachial) travel?

Posteriorly around the humerous and along the radial grove

13

What does the biceps jerk test?

C5 and C6 reflex arcs