what do spinal nerves do
each pair supplies one body wall segment with
- somatic sensory
- somatic motor
- organ function (sympathetics are carried on spinal nerves)
- reflexes
how do you test both the spinal nerves sensory and motor segment
spinal reflexes
which gyrus is somatosensory
postcentral
C1 dermatome
back of scalp/adams apple
C2 dermatome
back of neck and jugular notch
c4 dermatome
clavicle and shoulder tip
C5 DERMATOME
badge patch
C6 dermatome
thumb
C7 dermatome
middle finger
C8 dermatome
little finger
T1 dermatome
medial forearme
T2 dermatome
medial arm and sternal angle
t4 dermatome
male nipple
What dermatome is the xiphoid process
T8
What dermatome is the umbilicus
T10
What dermatome is the pubic symphysis
T12
L1 dermatome
groin
L2 dermatome
anterior thigh
L3 dermatome
anterior knee
L4 dermatome
medial malleolus
L5 dermatome
dorsum of foot
S1 dermatome
heel
S2 dermatome
posterior knee
S3 dermatome
buttock
S4 dermatome
perineum
S5 dermatome
peranal skin
Roots of the femoral nerve and therefore which dermatomes does the femoral nerve supply
L2, 3, 4
roots of the greet auricular nerve
C2, 3
roots of the supraclavicular nerves and area they supply
clavicle and shoulder tip
C3,4
what and where is the ‘nerve point’ of the neck
sensory nerves of cervical plexus pass from superficial to deep fascia at this point
-midpoint of the posterior border of the SCM
what name nerve supplies the upper anterolater trunk wall
intercostal nerves (anterior rami of T2-T11)
what supplies the lower anterolateral trunk wall
iliohypogastric and ilioinguinal nerves
bifurcation of anterior ramus of L1
what is the root of the subcostal nerve and as such which dermatome does it supply
anterior ramis of T12
which nerve supplies the badge patch and what are its roots
axillary
C5, 6
roots of radial nerve
C6, 7, 8
roots of the ulnar nerve
(C7), C8, T1
roots of the median nerve
C6, 7, 8, T1
