MSK - Muscles Of The Arm

Question 0

Where do the two heads of the biceps brachii attach to and from?

Answer 0

Short head is from the coraciod process to the tuberosity of the radius
Long head is from the supra glenoid cavity to the tub. of the radius

Question 1

What is the biceps brachii function and innervation?

Answer 1

Function = flexion of the forearm 
Innervation = Musculocutaneous nerve

Question 2

What is the action and innervation of the brachialis?

Answer 2

Flexion of the forearm

Musculocutaneous

Question 3

What is the distal attachment of the brachialis and where does it lead to?

Answer 3

Anterior humerus – coranoid process

Question 4

What is the role and innervation of the coracobracialis ?

Answer 4

Flexion and adduction of arm

Musculocutaneous

Question 5

Where does the coracobracialis attach from and to?

Answer 5

From the coraciod process to the medial surface of the humerus

Question 6

What is the role and innervation of the triceps brachii?

Answer 6

Extension of the forearm

Radial nerve

Question 7

Where do the three heads attach from and to?

Answer 7

Long head attaches from the infraglenoid tubercle
Lateral head is the posterior humerus above the radial groove
Medial head is below the radial groove
All attach to the olecranon of the ulnar

Question 8

What is the cubital fossa?

Answer 8

The hollow area anterior to the elbow joint that contains superficial neurovascular structures.

Question 9

What are the boundaries of the cubital fossa?

Answer 9

Lateral epicondyle to the medial epicondyle

Question 10

What is the order of subcutaneous structures within the cubital fossa?
(From lateral to medial)

Answer 10

Tendon(biceps) artery (brachial) nerve (median)