Chap 17& 18 Flashcards
autonomic
unconsious motor
parasympathetic
“rest and digest”
Cranial-Sacral
*Long preganglion
*Short Postganglion
Sympathetic
“Fight or Flight”
Thoracic-lumbar
*Short preganglion
*Long postganglion
anterior brachium: (biceps)
musculocutaneous nerve
anterior antebranchium:
median nerve
Posterior brachium
radial nerve
Posterior antebrachium
radial nerve
anterior thigh
femoral nerve
medial thigh
obturator nerve
posterior thigh/leg
tibial nerve
anterior knee
deep fibular nerve
lateral knee
superficial fibular nerve
Cranial Nerves:
olfactory S: olfaction
optic S: vision
oculomotor M: four extrinsic eye muscles
trochlear M: Superior oblique eye muscle c
trigeminal B: mastication
abducens M:lateral rectus eye muscle c
facial B: facial muscles
vestibulocochlear S: hearing
glossopharyngeal B: one pharynx muscle
vagus B: innervates heart
accessory M: sternocliedomastoid muscle
hypoglossal M: toungue muscles
anterior horn
motor
posterior horn
sensory
white matter
mylinated neurons
fisiculus gracilis –>
nucleus gracillis in medulla oblongata
fisiculus cuneatus —>
nucleus cuneatus in medulla oblongata
posterior funiculus-medial lemniscal pathway
fine touch, precise senses
**cross at medulla oblongata
anterolateral pathway
less precises; pain, pressure, temperature
**Cross at spinal cord
corticospinal tracts:
come down spinal cord, cross at needed level
L brain effects
R side of body
R brain effects
L side of body
Fig 18.3 autonomic nervous system division:
parasympathetic and sympathetic
parasympathetic
preganglionic neurons located in brainstem and S2-S4
Rest and digest, brings body to homeostasis
Sympathetic
preganglionc neurons located in lateral horns of T1-L2 segments of spinal cord.
Flight or Fight response
