Brachial Plexus to Elbow Flashcards Preview

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

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

A

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

2
Q

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

A

Coracoid process of scapula

3
Q

Where does the biceps brachii muscle attach on to inferiorly?

A

Radial tuberosity

4
Q

Where does the brachialis muscle attach on to inferiorly?

A

Ulnar tuberosity

5
Q

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

A

Inferior glenoid tuberosity

6
Q

Where does the triceps brachii muscle attach onto inferiorly?

A

Olecranon process of elbow

7
Q

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

A

Anterior and middle scalene

8
Q

Which nerve innervates teres minor?

A

Axillary nerve

9
Q

Which muscles does the suprascapular nerve innervate?

A

Supraspinatous

Infraspinatous

10
Q

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

A

Trapezius
Levator scapulae
Innervated by CN XI - accessory nerve

11
Q

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

A

Musculocutaneous nerve

Continuation is the lateral cutaneous nerve of arm

12
Q

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

A

Posteriorly around the humerous and along the radial grove

13
Q

What does the biceps jerk test?

A

C5 and C6 reflex arcs