Axilla and Brachial Plexus

Question 1

What spinal cord levels make up the brachial plexus

Answer 1

C5-T1

Question 2

Provides motor and sensory innervation to the upper limp

Answer 2

brachial plexus

Question 3

The apex of the axilla, through which vessels and nerves pass from the neck, is formed by

Answer 3

the convergence of the first rib, clavicle, and scapula.
The base of the axilla is fascia and skin.

Question 4

The brachial plexus begins in the neck as ventral rami of nerves?

Answer 4

C5 - C8 and T1
These are called the Roots of the plexus. (note that this nomenclature is confusing because these are not ventral or dorsal roots but ventral rami!!!)

Question 5

The first section of the brachial plexus is called? and they are formed by

Answer 5

the root
anterior or ventral remi of spinal nerves C5-T1

Question 6

The ventral root rami give rise to

Answer 6

3 trunks-superior middle and inferior trunk

Question 7

The superior trunck originates from? and what nerves originates from this trunck

Answer 7

C5-C6
subclavian and suprascapular

Question 8

The middle trunk originates from

Answer 8

c7

Question 9

The posterior cord originates from

Question 10

Each trunk divides into an anterior and posterior division which goes on to form ?

Answer 10

Three cords- lateral cord, posterior cord and medial cord

Question 11

The cords then give off

Answer 11

branches