anatomy of spinal nerves Flashcards
from medial to lateral describe the arrangement of the spinal nerves
begins with either anterior or posterior horn in the spinal cord
then to either anterior or posterior rootlets which then form a root which then join form the mixed spinal nerve
from the spinal nerve you get a an anterior and posterior ramus branching off
anterior -motor or sensory?
motor
what does a spinal nerve supply to its area of the body wall?
somatic general sensory
somatic motor
sympathetic motor to organs
reflex functions
where would you examine C2 dermatome?
back of scalp and adams apple
where would you examine C3 dermatome?
back of neck and jugular notch
where would you examine C4?
clavical and shoulder tip
where would you examine C5 dermatome?
badge patch on the arm
where would you examine C6 dermatome?
thumb
where would you examine C7 dermatome?
middle finger
where would you examine C8 dermatome?
little finger (pinky)
where would you examine T1 dermatome?
medial forearm
where would you examine T2 dermatome?
medial arm and sternal angle
where would you examine T4 dermatome
male nipple
where would you examine T8 dermatome
xiphoid process
where would you examine T12 dermatome
pubic symphysis
where would you examine L1 dermatome
groin
where would you examine L2 dermatome
anterior thigh
where would you examine L3 dermatome
anterior knee
where would you examine L4 dermatome
medial malleolus
where would you examine L5 dermatome
dorsum of foot
where would you examine S1 dermatome
heel
where would you examine S2 dermatome
posterior knee
where would you examine S3 dermatome?
buttock
where would you examine S 4 dermatome?
perineum
