The Arm

Question 1

what nerves are in the anterior compartment of the arm

Answer 1

median nerve and ulnar nerve

Question 2

what arteries and veins are in the anterior compartment of the arm

Answer 2

brachial artery and veins and collateral artery and veins

Question 3

what nerves are in the posterior compartment of the arm

Answer 3

radial nerve

Question 4

what arteries and veins are in the posterior compartment of the arm

Answer 4

collateral arteries and vein

Question 5

what are the anterior cutaneous nerves of the arm

Answer 5

-intercostal brachial nerve
-medial cutaneous nerve of arm
-lateral cutaneous nerve of forearm

Question 6

what are the posterior cutaneous nerves of the arm

Answer 6

-intercostobrachial nerve
-posterior cutaneous nerve

Question 7

what are the posterior cutaneous nerves of the shoulder

Answer 7

superior lateral cutaneous nerve of arm and supraclavicular nerves

Question 8

what are the anterior muscles of the arm

Answer 8

-biceps brachii: long and short head
-brachialis
-coracobrachialis

Question 9

what are the anterior muscles of the arm innervated by

Answer 9

musculocutaneous nerve

Question 10

what is the proximal attachment, distal attachment, actions, and innervation of biceps brachii?

Answer 10

-proximal attachment: long head: supraglenoid tubercle of scapula. short head: coracoid process of scapula
-distal attachment: radial tuberosity and fascia of forearm via bicipital aponeurosis
-actions: supinates forearm, when supine will flex forearm. resists dislocation of shoulder (short head)
-innervation: musculocutaneous nerve - C5, C6

Question 11

what is the proximal attachment, distal attachment, actions, and innervation of coracobrachialis?

Answer 11

-proximal attachment: coracoid process of scapula
-distal attachment: middle 1/3 of medial humeral surface
-actions:flexes and adducts arm at shoulder joint. resists dislocation of shoulder joint
-innervation: musculocutaneous (C5-C7)

Question 12

what is the proximal attachment, distal attachment, actions, and innervation of brachialis?

Answer 12

-proximal attachment: distal 1/2 of anterior surface of humerus
- distal attachment: coronoid process and tuberosity of ulna
- actions: flexes forearm at elbow joint
-innervation: musculocutaneous nerve (C5, C6), lateral portions may receive, radial nerve contributions

Question 13

what are the posterior muscles of the arm

Answer 13

-triceps brachii: long head, lateral head, medial head
-anconeus

Question 14

what are the posterior muscles of the arm innervated by

Answer 14

radial nerve