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A. Anatomy brachial plexus
BrownMed
45
Chemical Engineering
Graduate
09/15/2010

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Term
in the lateral protrusions, the thumbs are oriented in which direction
Definition
superiorally (cranially)
Term
limb muscle masses (2)
Definition
posterior compartment muscles and anterior compartment muscles
Term
brachial plexus innervation
Definition
anterior rami C5-T1
Term
irritation of diaphragm shows up where?
Definition
radially in C3,4,5 sections of skin on arm - mid forearm to lower neck
Term
dermatome innervation roughly corresponds to
Definition
myotome innervation
Term
myotome / dermatome =
Definition
muscle mass / area of skin innervated by a single spinal nerve
Term
somite =
Definition
myotome, dermatome, and one other thing
Term
what does the dorsal ramus innervate
Definition
epaxial muscles (postural muscles of back)
Term
glenohumeral joint
Definition
Term
order of brachial plexus
Definition
RTDCB roots trunks divisions cords branches
Term
3 trunks
Definition
superior, medial, inferior
Term
3 pair divisions
Definition
anterior and posterior of each trunk
Term
3 cords
Definition
lateral, posterior, medial
Term
terminal branches
Definition
musculocutaneous, axillary, radial, median, ulnar
Term
m.c. innervation
Definition
c5-c7
Term
axillary innervation
Definition
c5,c6
Term
radial innervation
Definition
c5-t1 (all!)
Term
median innervation
Definition
c6-t1
Term
ulnar innervation
Definition
c8,t1
Term
long thoracic nerve (location, what it innervates, and motor or sensory = LIMS)
Definition
comes off c5-c7 roots, serratus anterior, motor only
Term
dorsal scapular nerve LIMS
Definition
comes off c5 root, rhomboids, both
Term
nerve to subclavius LIMS
Definition
comes off superior trunk, subclavius, both
Term
suprascapular nerve
Definition
comes off superior trunk, infraspinatus and supraspinatus, motor only
Term
lateral pectoral nerve LIMS
Definition
comes off lateral cord, pec. major, motor only
Term
medial pectoral nerve LIMS
Definition
comes off anterior division of inferior trunk, pec. minor (and major), motor only
Term
medial cutaneous brachial nerve
Definition
medial cord, lower arm sensory
Term
medial cutaneous antebrachial nerve
Definition
medial cord, upper arm sensory
Term
upper subscapular nerve
Definition
posterior cord, superior subscapularis, motor
Term
thoracodorsal nerve
Definition
posterior cord, latissimus dorsi, motor
Term
lower subscapular nerve
Definition
posterior cord, inferior subscapularis and teres major, motor
Term
for brachial plexus, lateral =
Definition
more cranial, and medial = more caudal
Term
anterior division nerves
Definition
m.c., median, ulnar.
Term
posterior division nerves
Definition
axillary, radial
Term
axillary innervates
Definition
deltoids
Term
anterior and posterior compartments are
Definition
REAL, linked by development and bound by fascia
Term
m.c. innervates
Definition
brachialis, coracobrachialis, biceps (flexors)
Term
radial nerve innervates (2)
Definition
triceps (extensors), anconeusa
Term
median innervates
Definition
thumb and corresponding forearm area
Term
ulnar innervates
Definition
fingers other than thumb, opposite forearm area to radial area
Term
hyperextension at the neck =
Definition
upper brachial plexus injury
Term
"waiter's tip"
Definition
erb-duchenne palsy = upper brachial plexus injury. loss of brachial flexors = medially rotated arm and dropped shoulder = fully extended arm. m.c. or axillary.
Term
lower brachial plexus injury
Definition
lose grip, can't flex hand = claw hand or clumpky's paralysis. ulnar or median.
Term
supracondylar fracture
Definition
median nerve and brachial artery can be pinched = "ape-hand" or "ape-thumb" palsy = can't oppose thumb
Term
actions of upper limb
Definition
adduction, abduction, lateral rotation, medial rotation, flexion, extension (for these two know the joint that is affected), supination, pronation
Term
have to know netter's SENSORY innervation map!
Definition
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