Brachial Plexus Flashcards
What is the brachial plexus divided into?
Nerve roots Trunks Divisions Cords Terminal nerves
Which nerve roots make up the brachial plexus?
C5 C6 C7 C8 T1
What are the different trunks?
Superior trunk
Middle trunk
Inferior trunk
What nerve roots make up the superior trunk?
C5
C6
What nerve roots make up the middle trunk?
C7
What nerve roots make up the inferior trunk?
C8
T1
What happens in the division section?
Each trunk splits into an anterior and posterior division
What are the different cord?
Lateral
Posterior
Medial
Which divisions make up the lateral cord?
Superior anterior
Middle anterior
Which nerve roots make up the lateral cord?
C5
C6
C7
Which divisions make up the posterior cord?
Superior posterior
Middle posterior
Inferior posterior
Which nerve roots make up the posterior cord?
C5 C6 C7 C8 T1
Which divisions make up the medial cord?
Inferior anterior
Which nerve roots make up the medial cord?
C8
T1
What are the different terminal nerves?
Musculocutaneous nerve Axillary nerve Median nerve Radial nerve Ulnar nerve
Which terminal nerves does the lateral cord contribute to?
Musculocutaneous nerve
Median nerve
Which terminal nerves does the posterior cord contribute to?
Axillary nerve
Radial nerve
Which terminal nerves does the medial cord contribute to?
Median nerve
Ulnar nerve
Which nerve roots make up the musculocutaneous nerve?
C5
C6
C7
Which nerves make up the axillary nerve?
C5
C6
Which nerve roots make up the median nerve?
C6
C7
C8
T1
Which nerve roots make up the radial nerve?
C5 C6 C7 C8 T1
Which nerve roots make up the ulnar nerve?
C8
T1
What other nerves are given off of the brachial plexus?
Long thoracic
Medial pectoral
Lateral pectoral
