Axilla and Brachial plexus Flashcards
1
Q
What are the roots of the brachial plexus
A
the ventral rami of C5-T1 (don’t confuse with dorsal and ventral roots of the spinal cord)
2
Q
Which roots combine to form upper trunk?
A
C5 C6
3
Q
Which root forms middle trunk
A
C7
4
Q
Which roots form lower trunk?
A
C8-T1
5
Q
Where are the trunks of the BP located
A
superior and posterior to the clavicle
6
Q
T or F Each trunk divides into an anterior (ventral) and posterior (dorsal) division
A
T
7
Q
Where does the division from trunks take place
A
at the level of the clavicle
8
Q
cords are named based off their proximity to which artery
A
axillary (lateral, medial, posterior)
9
Q
Brachial plexus is formed by the union of
A
lower 4 cervical primary VENTRAL rami & 1st thoracic VENTRAL ramus (formation is variable so C4 or T2 might also contribute)
