Chap 17& 18 Flashcards Preview

Human Anatomy Exam 3 > Chap 17& 18 > Flashcards

Flashcards in Chap 17& 18 Deck (26):
1

autonomic

unconsious motor

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parasympathetic

"rest and digest"
Cranial-Sacral
*Long preganglion
*Short Postganglion

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Sympathetic

"Fight or Flight"
Thoracic-lumbar
*Short preganglion
*Long postganglion

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anterior brachium: (biceps)

musculocutaneous nerve

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anterior antebranchium:

median nerve

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Posterior brachium

radial nerve

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Posterior antebrachium

radial nerve

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anterior thigh

femoral nerve

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medial thigh

obturator nerve

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posterior thigh/leg

tibial nerve

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anterior knee

deep fibular nerve

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lateral knee

superficial fibular nerve

13

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

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anterior horn

motor

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posterior horn

sensory

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white matter

mylinated neurons

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fisiculus gracilis -->

nucleus gracillis in medulla oblongata

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fisiculus cuneatus --->

nucleus cuneatus in medulla oblongata

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posterior funiculus-medial lemniscal pathway

fine touch, precise senses
**cross at medulla oblongata

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anterolateral pathway

less precises; pain, pressure, temperature
**Cross at spinal cord

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corticospinal tracts:

come down spinal cord, cross at needed level

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L brain effects

R side of body

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R brain effects

L side of body

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Fig 18.3 autonomic nervous system division:

parasympathetic and sympathetic

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parasympathetic

preganglionic neurons located in brainstem and S2-S4
Rest and digest, brings body to homeostasis

26

Sympathetic

preganglionc neurons located in lateral horns of T1-L2 segments of spinal cord.
Flight or Fight response