BIO 109 Quiz 3 Flashcards by shawna shinody

Q

What is dura matter (tough mother)

A

outermost layer

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Q

how many pairs of spinal nerves

A

31

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Q

what is reflex arch?

A

neural pathway

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Q

which tract carries motor signals

A

coritcospinal

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Q

what is pia mater?

A

innermost layer

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Q

which lobe processes sound

A

temporal lobe

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Q

how many cranial nerves?

A

12

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Q

what is the filum terminale?

A

spinal cord end

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Q

which part controls speech

A

frontal lobe

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Q

where is medulla located?

A

brain stem

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Q

what is posterior horn?

A

sensory neurons

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Q

which tract carries pain signals

A

spinothalamic

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Q

which lobe processes vision

A

occipital lobes

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Q

brain stem regulates breathing

A

TRUE - medulla oblongata

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Q

what is cauda equina?

A

end of spine
spinal nerve roots

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Q

what is the anterior horn?

A

motor neurons

Q

what is CNS composed of?

A

brain and spinal cord

Q

which part controls heart rate?

A

medulla oblongata

Q

what’s the function of dendrites?

A

receive signals

Q

where is the broca’s area located?

A

frontal lobe

Q

how does brain get o2

A

blood

Q

which lobe controls balance?

A

cerebellum

Q

what connect brain hemispheres?

A

corpus callosum

Q

what is the threshold potential

A

-55mV

which cells form myelin in CNS

oligodendrocytes

part of brain responsible for hearing

temporal

cranial nerve responsible for balance & hearing

VIII - vestibulocochlear

which cells form myelin in PNS

schwann cells

order of meninges for super to deep

dura, arachnoid, & pia mater

what is the resting membrane potential?

-77mV

cranial nerve that innervates SCM

II-XI

efferent neurons

motor neurons

track communications within the same hemisphere?

association

parts of diencephalon

thalamus hypothalamus epithalamus

parts of spinal cord located near L1-L2

conus medularris

filum terminale

end of it all