Brachial plexus Flashcards
(22 cards)
Name the 4 parts of the brachial plexus
Roots
trunks
divisons
cords
How many roots are there
5
how many trunks are there
3
How many divisions are there
6
How many cords are there
3
Name the 5 roots of brachial plexus
C5, C6, C7, C8, T1
What roots form the upper trunk
C5,C6,C7
What roots from the middle trunk
C7
What roots form the lower trunk
CB, T1
What do trunks divide to form
anterior/posterior trunk division
Name the 3 cords
Lateral, posterior and anterior
What forms the posterior cord
the upper, middle and lower posterior trunks
What forms the lateral cord
anterior upper and middle trunk
What forms the medial cord
the anterior lower trunks
Name the 5 terminal branches
1 - musculo-cutaneous 2 - median 3 - ulnar 4 - radial 5 - axillary
What cords form the musculo-cutaneous terminal branch
lateral
What cords form the median terminal branch
lateral and medial
what cords form the ulnar terminal branch
medial
what cords form the radial terminal branch
posterior
what cords form the axillary terminal branch
posterior
Why is the brachial plexus important in clinical medicine - with reference to closed injuries
On clinical examination, accurate asssesment of the pattern of muscle weakness can guide the clinican to work out the level of injury
Why is the brachial plexus important in clinical medicine - with reference to anaesthestics
When an operation is being performed on the upper limb, brahcial plexus nerve blocks are performed supra or infraclavicular, so that the person will not feel the pain from the operation
