The anterior compartment of the forearm - lymph and nerves (dave's notes)

Question 1

Describe the general pattern of lymphatic drainage of the forearm

Answer 1

Superficial lymphatics follow veins and deep ones follow arteries.

Question 2

What do ulnar lymphatics drain to?

Answer 2

via the basilic to supratrochlear nodes

Question 3

To what nodes does radial lymph drain to ????

Answer 3

Via cephalic to deltopectoral and infraclavicular nodes.

Question 4

What are the nerves of the flexor compartment of the forearm?

Answer 4

Lateral cutaneous nerve of the forearm
Medial cutaneous nerve of the forearm
Superficial branch of the radial nerve
Median nerve
Ulnar nerve

Question 5

From what does the lateral cutaneous nerve of the forearm arise?

Answer 5

A cutaneous continuation of the musculocutaneous nerve by piercing the fascia above the elbow

Question 6

What does the course of the medial cutaneous nerve of the forearm mirror? What does it supply?

Answer 6

Roughly symmetrical with the lateral cutaneous nerve. Supplies the post axial border.

Question 7

What does the superficial branch of the radial nerve supply?

Answer 7

The radial two-thirds of the dorsum of the hand and the proximal parts of the dorsal surfaces of the thumb, index, middle and half of the ring finger.

Question 8

What does the median nerve supply? What branch does it give off and what does this supply?

Answer 8

From the cubital fossa it gives a branch to pronator teres, then supplies FCR and palmaris longus.
gives of an anterior interosseous branch to FDP, FPL, PQ, and the interosseous membrane and periosteum.

Question 9

How does the ulnar nerve enter the anterior compartment of the forearm? What is its course thereafter? What does it supply?

Answer 9

Enters by passing between the head of flexor carpi ulnaris, which lies under, not emerging till the wrist.
Gives of a dorsal branch to the dorsum of the hand and ulnar 1.5 fingers.
Passing over the flexor retinaculum it supplies the skin over the hypothenar eminence.