brachial plexus quiz Flashcards
what are the roots of the brachial plexus?
C5, C6, C7, C8, T1
what are the trunks of the brachial plexus?
superior (upper), middle, and inferior (lower)
what roots make up the superior trunk?
C5/C6
what roots make up the middle trunk?
C7
what roots make up the inferior trunk?
C8/T1
what are the divisions of the BP?
3 anterior + 3 posterior
what are the cords?
lateral, posterior, + medial
what divisions make up the lateral cord?
anterior divisions from superior + middle trunk
what divisions make up the posterior cord?
the posterior divisions
what divisions make up the medial cord?
the anterior divisions of the inferior cord
what are the terminal branches of the BP?
musculocutaneous n, axillary n, radial n, median n, ulnar n
what are the terminal branches off of the lateral cord?
musculocutaneous n + median n
what are the terminal branches off of the posterior cord?
axillary n + radial n
what are the terminal branches off of the medial cord?
ulnar n + median n
what nerve branches come off of the C5 root?
dorsal scap n, branch to phrenic n, dorsal ramus, + C4 root contribution
what nerve branches come off of T1 root?
1st intercostal n + T2 root contribution
what roots does the nerve longus colli + scalene m come from?
C5, C6, C7, + C8
what roots does the long thoracic n come from?
C5, C6,+ C7
what trunk does the suprascapular n come from?
superior (C5/C6 roots)
what trunk does the n to subclavius m come from?
superior (C5/C6 roots)
how many nerve branches come off of the lateral cord?
1
what cord does the lateral pec n come from?
lateral (C5/C6/C7 roots)
how many nerve branches come off of the posterior cord?
3
what cord does the upper scap n come from?
posterior cord (C5/C6 root)
what cord does the thoracodorsal (middle subscap) n come from?
posterior cord (C6/C7/C8 roots)
what cord does the lower subscap n come from?
posterior cord (C5/C6 roots)
how many nerve branches come off of the medial cord?
3
what cord does the medial pec n come from?
medial cord (C8/T1 roots)
what cord does the medial brachial cut n come from?
medial cord (T1 roots)
what cord does the medial antebrachial cut n come from?
medial cord (C8/T1 roots)
what are the spinal levels of the musculocutaneous n?
C5/C6/C7
what are the spinal levels of the axillary n?
C5/C6
what are the spinal levels of the radial n?
C5/C6/C7/C8/T1
what are the spinal levels of the median n?
C5/C6/C7/C8/T1
what are the spinal levels of the ulnar n?
C7/C8/T1
