Nerves

Question 1

Sciatic Nerve

Answer 1

L4-S3
From the greater sciatic nerve either under, through and over piriformis between ischial tuberosity and greater trochanter, through posterior thigh splits above the knee to tibial and common fibular nerve. Innervates bicep femoris, semitendinosus(hamstrings)

Question 2

Ulnar nerve

Answer 2

C8-T1
Derives from the medial cord, between anterior and middle scalene, under clavicle, under scapula down to anterior forearm, fingers 4,5. Innervates flexors( FDU,FCU)

Question 3

Radial Nerve

Answer 3

C5-T1
Derived from the posterior cord, b/between anterior and middle scalene, under clavicle, under scapula to middle of scapula, down to posterior arm. Innervates tricep brachii, brachioradialis….

Question 4

Median Nerve

Answer 4

C5-T1
Derived from medial and lateral cord, between anterior and middle scalene, under clavicle, under scapula down to anterior forearm, down to thumb, 2-3 and half of the 4th finger through carpal tunnel. Innervates flexors, pronator teres and pronator quadrotum

Question 5

Musculocutaneous

Answer 5

C5-C7
Derive from the lateral cord
Upper arm only
Innervates coracobrachialis, brachialis and bicep brachii

Question 6

Femoral nerve

Answer 6

L2-L4
Pathway more medial to the thigh;and stays above the knee
Innervates hip flexors and knee extensors(quads)

Question 7

Fibular nerve

Answer 7

Wraps around the head of the fibula innervating lateral and anterior aspect of the leg
Innevates TA, Extensors group

Question 8

Tibial Nerve

Answer 8

Runs down the back of posterior leg medially to the plantar surface of foot Innervates tricep surae and tp, fdl,fhl

Question 9

Pulse points

Answer 9

Arteries:
Temporal, facial, carrotid, brachial, radial, popliteal, dorsal pedis,

Question 10

Deep tendon Reflex

Answer 10

Patellar
Achilles Tendon
Brachialis
Brachioradialis
Tricep brachii
Popliteal