Lab Quiz 10

spinal cord

anterior root

posterior root

posterior root ganglion

spinal nerve

anterior ramus

anterior funiculi

posterior horn

spinal nerve

posterior root ganglion

posterior root

anterior root

anterior ramus

posterior ramus

lateral horn

posterior horn

anterior funiculus

lateral funiculus

posterior funiculus

anterior horn

sensory neurons

enter through posterior roots

primary neurons

cell bodies in posterior root ganglion

seconday neurons

cell bodies in posterior horns

motor neurons

exit through anterior roots

somatic motor neurons

cell bodies in anterior horns

visceral motor neurons

cell bodies in lateral horns

functional organization of parasympatheic NS

rest and digest

structural organization of parasympathetic NS

craniosacral division, 4 cranial nerves (III, VII, IX, and X)

functional organization of sympathetic NS

fight or flight

structural organization of sympathetic NS

thoracolumbar division

Anatomic parasympathetic NS

craniosacral division, long preganglionic axons, short postganglionic axons, ACh/ACh, nitotinic/muscarinic

Anatomic sympathetic NS

thoracolumbar division, short preganglionic axons, lost postganglionic axons, ACh/NE, nicotinic/adrenergic