Exam 2 - Lecture 10 - Brachium, Cubital Fossa

Question 1

What are connective tissue membranes that divide a limb into two or more compartments?

Answer 1

Septa (i.e. septum singular)

Question 2

What septum of the arm goes from the subcutaneous sheath to the humerus?

Answer 2

Medial intermuscular septum

Question 3

What septum of the arm goes from the subcutaneous sheath to the humerus?

Answer 3

Lateral intermuscular septum

Question 4

Identify the muscles labeled in the diagram

Answer 4

Green:Bicep brachii; Blue:Coracobrachialis; Red:Brachialis

Question 5

What is the function of the biceps brachii, coracobrachialis, and brachialis?

Answer 5

Forearm flexors

Question 6

What nerve innervates the anterior brachial compartment (i.e. biceps brachii, coracobrachialis, and brachialis)?

Answer 6

Musculocutaneous nerve

Question 7

Identify the nerve.

Answer 7

Musculocutaneous nerve

Question 8

What is the proximal attachment of the short head of the biceps brachii?

Answer 8

Coracoid process

Question 9

What is the proximal attachment of the long head of the biceps brachii?

Answer 9

Supraglenoid tubercle of scapula

Question 10

What is the distal attachment of the biceps brachii?

Answer 10

Tuberosity of radius

Question 11

What is the action of the biceps brachii?

Answer 11

Flexion and supination of forearm as well as forearm flexion

Question 12

What is the proximal attachment of the coracobrachialis?

Answer 12

Coracoid

Question 13

What is the distal attachment of the coracobrachialis?

Answer 13

Middle third of medial border of humerus

Question 14

What is the action of the coracobrachialis?

Answer 14

Weakly flexes and adducts arm

Question 15

What is the proximal attachment of the brachialis?

Answer 15

Distal half of anterior surface of humerus and intermuscular septum

Question 16

What is the distal attachment of the brachialis?

Answer 16

Tuberosity of coronoid process

Question 17

What is the action of the brachialis?

Answer 17

Main flexor of forearm