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

Q

which cells form myelin in CNS

A

oligodendrocytes

Q

part of brain responsible for hearing

A

temporal

Q

cranial nerve responsible for balance & hearing

A

VIII - vestibulocochlear

Q

which cells form myelin in PNS

A

schwann cells

Q

order of meninges for super to deep

A

dura, arachnoid, & pia mater

Q

what is the resting membrane potential?

A

-77mV

Q

cranial nerve that innervates SCM

A

II-XI

Q

efferent neurons

A

motor neurons

Q

track communications within the same hemisphere?

A

association

Q

parts of diencephalon

A

thalamus
hypothalamus
epithalamus

Q

parts of spinal cord located near L1-L2

A

conus medularris

Q

filum terminale

A

end of it all