2 Lab 1 Flashcards
Cervical Plexus
C1-C5
Brachial plexus
C5-T1 (also need to know trunks and cords)
Lumbar Plexus
T12-L4
Sacral Plexus
L4-S4
Lesser occipital nerve (Distribution)
Skin of the neck and the scalp posterior and superior to the ear
Phrenic nerve (Distribution)
Diaphragm
Supraclavicular nerves (Distribution)
Skin of the neck and shoulder
Pectoral nerves (medial and lateral)
Pectoralis muscles
Greater auricular nerve (Distribution)
Skin over the posterior aspect of the ear and neck
Axillary nerve (Distribution)
Deltoid and teres minor
Median nerve (Distribution)
Flexor muscles on the forearm; pronator quadratus and pronator teres; digital flexors; sensory from skin over the anterolateral surface of hand
Ulnar nerve (Distribution)
Flexor carpi ulnaris, flexor digitorum profundus, adductor pollicis, and small digital muscles by the deep branch; sensory from skin over medial surface of the hand through the superficial branch.
Musculocutaneous nerve (Distribution)
Flexor muscles on the arm; sensory from skin over the lateral surface of the forearm through the lateral antebrachial cutaneous nerve.
Radial nerve (Distribution)
Extensor muscles of arm and forearm (triceps brachii, anconeus, extensor carpi radialis, extensor carpi ulnaris, brachioradialis); sensory from skin over posterolateral surface of limb and radial half of hand.
Pectoral nerves (medial and lateral) (distribution)
Pectoralis muscles