Ch 9: Blood supply, Innervation, and Lymph. Drainage of SH girdle Flashcards
brachial plexuses formed by what
ANT primary rami of roots from C5-T1 (including C8)
brachial plexus divided into (mnemonic)
roots, trunks, divisions, cords, branches, individual nerves
“rugby teams drink cold beer (nightly)”
which root(s) unite to form SUP trunk
C5 and C6
which root(s) form middle trunk
C7
3 trunks
superior, middle, and inferior
which root(s) form the INF trunk
C8 and T1
each trunk divides into an _____ and _____ ________
ANT and POST division
which divisions unite to form the the POST cord
POST division of all 3 trunks (SUP, middle, and INF)
the LAT cord is formed by
the ANT division of SUP and middle trunks
the MED cord is formed by
the ANT division of the INF trunk
the cords are named for their spatial orientation around the 2nd part of the ______ ____
axillary artery
compression of nerve means
squished by bone
entrapment of a nerve means
squished by soft tissue (muscle)
3 cords of brachial plexus
LAT, POST, and MED
what’re the terminal branches (MARMU)
musculocutaneous, axillary, radial, median, ulnar
the dorsoscapular n comes from which root(s) and innervates what muscles
C5
levator scapulae, rhomboids
the long thoracic nerve comes from which root(s) and innervates which muscle
C5, 6, 7,
serratus ANT
the phrenic nerve comes from which root(s) and innervates what
C3, 4, 5
diaphragm
n to subclavius comes from which root(s) and which trunk
C5,6
SUP trunk
suprascapular nerve comes from which root(s) and which trunk and innervates what
C5,6
SUP trunk
supraspinatus and infraspinatus
which 3 nerves come from the MED cord (C7, C8, T1)
MED pectoral n, MED brachial cutaneous n, MED antebrachial cutaneous n
which 2 nerves come from the SUP trunk
n to subclavius and suprascapular n
which 3 nerves come from the roots
dorsoscapular, long thoracic, phrenic
MED pectoral n comes from which root(s) and innervates what mms
C8, T1
pec minor and major
MED brachial cutaneous n comes from which root(s) and innervates what
T1
cutaneous sensation to MED arm
MED antebrachial cutaneous n comes from which root(s) and innervates what
C8, T1
cutaneous sensation to MED forearm
which terminal branches come from the MED cord (2)
MED branch of median n and the ulnar nerve
numbers that match mnemonic RTDCB
5, 3, 6, 3, 5
ulnar nerve comes from which root(s)
(C7), C8, T1
the LAT cord comes from root(s) and has which nerve coming off it
C5,6,7
LAT pectoral n
LAT pectoral nerve comes from which root(s) and innervates what
C5,6,7
pec. major
what terminal branches come from the LAT cord C5,6,7
LAT branch of median n and the musculocutaneous n C5,6,7
individual 3 nerves that come from POST cord C5,6,7,8,T1
upper subscapular C5,6
thoracodorsal (C6),7,8
lower subscapular C5,6
the upper subscapular n comes from which root(s) and innervates what
C5,6
subscapularis
the thoracodorsal n comes from which root(s) and innervates what
(C6),7,8
lat dorsi
the lower subscapular n comes from which root(s) and innervates what
C5,6
subscapularis and teres maj.
2 terminal branches that come from the POST cord
axillary n C5,6
radial n C5-(T1)
axillary n comes from which root(s) and innervates what
C5,6
deltoid, teres minor; cutaneous to LAT shoulder
the radial n comes from which root(s) and innervates what
C5,6,7,8,(T1)
muscles in the POST arm and forearm; cutaneous to the arm, forearm and 1st-3rd digit posteriorly
the median n comes from which root(s) and innervates what
C5,6,7,8,(T1)
mms of ANT forearm, some intrinsic hand mms; cutaneous to the 1st to LAT half of 4th digit anteriorly
