week 5 sem 2 Flashcards
radial nerve lesion motor, sensory, function
M: triceps, anconeus, brachioradialis, supinator, ECRL, ECRB, ED, ECU, EI,
AbdPL
S: skin of the posterior arm, forearm and hand (lateral 3½ digits)
F: no weight bearing on Upper Limb, cannot release grip
ulna nerve lesion motor, sensory, function
m: FCU, medial 1/2 FDP, hypothenar muscles, medial 2 lumbricals, AddPol, all interossei
S: palmar and dorsal skin of the medial 1 and 1/2 digits and corresponding palm
F: * loss of digital sweep medial 2 digits (loss of intrinsics)
* reduced power grip (unable to adduct thumb)
* sensory loss
median nerve lesion motor, sensory, function
M: FCR, FDS, FPL, lat1/2 FDP, both pronators, thenar muscles, lat 2 lumbricals,
S: palmar and dorsal skin of the lateral 3 and 1/2 digits and corresponding palm
F: * loss of digital sweep lateral 2 digits (loss of lumbricals)
* reduced precision grip (unable to position thumb)
* sensory loss
Suprascapular nerve lesion motor, sensory, function
M: supraspinatus, infraspinatus
S: shoulder joint
F: reduced ability to “seat” humeral head (head moves forward during all shoulder
motion)
* reduced range of shoulder motion, particularly abduction and external rotation
(inability to use all of glenoid surface)
Long thoracic nerve lesion motor, function
M: serratus anterior
F: Reduce scapulothoracic joint
stability
* Implications on scapulohumeral
rhythm
deformity= winged scapula
mytotome of shoulder abduction & lat rot
C5
mytotome of shoulder adduction & med rot
C678
myotome of elbow flexion
C56
myotome of elbow extension
C78
myotome of radioulnar supination
C6
myotome of radioulnar pronation
C78
mytomone of wrist flexion & extension
C67
myotome digit flexion & extension
C78
myotome digit Add, Abd and Opp
C8 T1
c5 dermotome
above acromion process of scapula under clavicle (from behind and anterior) wraps round to mid deltoid and continue to midline of body// medial anterior arm and forearm
c6 dermotome
upper back and shoulders to lateral deltolid arm forarm to thumb
c7 dermotome
middle deltoid arm forarm and hand posteriorly ONLY then digits 2,3 anteriorly and posteriorly
c8 dermotome
at superior boarder of scapula to medial side of arm forearm and M 2 digits
t1 dermotome
anterior and posterior around middle pec major, armpit/ anteriomedial surface of arm & forearm
right vs left aortic branch
right- Brachiocephalic trunk
left- Direct branches from aorta
Upper Limb Arteries
Identify
* Axillary
* Brachial
* Profunda brachii
* Radial
* Ulnar
* Superficial palmar arch
* Deep palmar arch
Deep veins
- run with arteries but in opposite direction
- same name as arteries
- e.g. axillary vein with axillary artery
- contain valves
- drain what the artery supplies
- vena commitantes
Superficial veins
- in the superficial tissue
- valves (not as many as deep veins)
- anastomose (communicate) freely with the deep veins
- best identified in the surface anatomy
- Significance of having two sets of veins:
- two ways to return blood to the heart, some in-built redundancy* temperature control
deep veins are
radial, axially, ulna, brachial
