Ch 11 Flashcards
neck
-cervical
-7 vertebrae
-C1-C8
chest
-thoracic
-12 vertebrae
-T1-T12
low back
-lumbar
-5 vertebrae
-L1-L5
pelvis
-sacral
-S1-S5
-5 fused vertebrae
tailbone
-coccyx
-4 fused vertebrae
-Co1
how many vertebrae are there altogether?
-33 vertebrae
how many pairs/segments of nerves are there altogether?
-31 nerve pairs/segments
dermatones muscle group and landmarks
-C2: back of head
-T4: nipple level
-T10: umbilicus
-S5: anal area
myotome
-C5-elbow flexion
-C6-wrist extension
-C7-elbow extension
-C8-finger flexion
-T1-pinky abduction
myotactic reflexes; monosynaptic reflexes path
-muscle spindle notes stretch in muscle and sends an action potential to the spinal cord
-synapse on efferent neuron of the same muscle to produce a muscle contraction
medulla