Brachial Plexus

What does each trunk give off?

An anterior and posterior division, all three posterior divisions come together

What is the brachial plexus made up of?

Anterior (ventral) primary rami fo C5-T1

What peripheral nerves come off of the medial cord?

Medial pectoral nerve, medial cutaneous nerve of arm and medial cutaneous nerve of forearm

What does the thorocodorsal nerve innervate?

Lat. dorsi

An injury to what nerve would make your scapula wing out?

Lateral pectoral

The posterior cord gives off the?

Radial and axillary nerve

Which for arm bone rolls on the humorous and participates in pronation and supination?

Radius

What does the axillary nerve innervate?

Deltoid and teres minor

What peripheral nerve comes off the top of C5?

Dorsal scapular nerve

What peripheral nerve comes off the lateral cord?

Lateral pectoral nerve

What are the cords of the brachial plexus?

Lateral, posterior and medial

What peripheral nerve comes off of C5, C6, C7 and C8?

Long thoracic nerve

The lateral and medial cords come together to form the?

Median nerve

The lateral cord gives off the?

Musculocutaneous nerve

What peripheral nerve comes off the superior trunk?

Nerve to subclavius

What are the parts of the brachial plexus? (RTDC)

Roots, trunks, divisions, cords, and terminal nerves

What peripheral nerves come off the posterior cord?

Subscapular nerves and thorocodorsal nerve

What are the trunks of the brachial plexus?

Superior (C5 &C6) Middle (C7) Inferior (C8 & T1)

What peripheral nerve comes off the anterior division of the superior trunk?

Suprascapular nerve

Which forearm bone preforms the hinge action at the elbow joint?

Ulna

The medial cord gives off the?

Ulnar nerve

What is ulnar nerve entrapment?

When the flexor carpi ulnaris is injured, the hand becomes permanently flexed (ulnar claw)