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pps neuro Flashcards

1
Q

In the cross section of a spinal cord what are the # of grey matter and # of white matter, and what are they?

A

grey matter (3)
anterior horn
posterior horn
gray commsiure

white matter (9)
anterior funiculus
posterior funiculus
lateral funiculus
anterior commisure
anterior median fissure
posterior median sulcus
central canal
anterior root
posterior root
dorsal root ganglion
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2
Q

dorsal root vs dorsal root ganglion vs sensory body

A

dorsal root
outer casing

dorsal root ganglion
is the bump caused by the sensory body

sensory body
is the signal (lollipop shape) that passes through the dorsal root ganglion not the dorsal root

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3
Q

dorsal root ganglion contains the ___ ___ of ___ neurons

A

cell bodies

sensory

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4
Q

The sensory body passes through?

A

dorsal root ganglion

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5
Q

posterior horn vs anterior horn

A

posterior horn
contains neuron cell bodies that synapse with afferent neurons

anterior horn
contains neuron cell bodies that send efferent axons

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6
Q

lateral horns are ?

A

autonomic neuron cell bodies

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7
Q

dorsal root aka

A

sensory root of a spinal nerve

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8
Q

columns of white matter?

A

3
dorsal
ventral
lateral

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9
Q

__ houses cell bodies of somatic motor neurons.
____ serves as a communication route between left and right sides.
_____ houses axons of sensory neurons and cell bodies of interneurons
_____ houses cell bodies of autonomic motor neurons

A

anterior horns
gray commisure
posterior horns
lateral horns

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10
Q

a mixed nerve consists of

A

both efferent and afferent fibers

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11
Q

ventral root vs ventral ramus

A

ventral root
casing of the nerves

ventral ramus
small extentions of the ventral root, found away from the spinal cord

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12
Q

Ventral ramus is the cord/casing that takes the ___ away from __ towards __

A

nerves
the spinal cord ( ventral root)
the limbs (sensory areas)

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13
Q

efferent nerve fibers
carries ______ from ____ to ____

afferent nerve fibers
carries ____ from ____ to _____

A

impulses
CNS to Periphery

impulses
periphery to CNS

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14
Q

Cns > periphery _____

A

efferent nerve fibers

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15
Q

periphery > CNS ___

A

afferent nerve fibers

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16
Q

efferent fibers aka

A

somatic motor fibers

17
Q

efferent (somatic motor ) fibers are found in the ___

A

ventral root

18
Q

Afferent nerves conduct nerve impulses from___ to __

A

receptors to the CNS

19
Q

The factor most affecting the rate of the impulse conduction is the ___

A

presence/absence of myelin sheath

20
Q

_____ contains cell bodies of sensory neurons

A

dorsal root ganglion

21
Q

skeletal( ___) muscle contraction is initiated by ____ in ____ ? Be specific

A

striated
lower motor neurons in the ventral horn of the spinal cord gray matter and in the motor nuclei of the cranial nerves of the brainstem.

22
Q

definitions

___ towards the midline of the body and ___ away from the midline of the body

A

medial

lateral

23
Q

crossectional view of spinal cord segment:

_____ horn is inferior to _____ but superior to ____

A

lateral
dorsal
ventral

ie (lateral - middle)

24
Q

cell bodies of motor neurons to skeletal muscles are located in the ____ of the spinal cord

A

ventral/anterior grey horn

25
Q

autonomic ( ___) motor neurons

A

visceral

26
Q

somatic motor neuron vs somatic sensory neuron

A

?

27
Q

Fine control of body motor coordination and balance is a function of the ?

A

cerebellum

28
Q

cerebellum is part of the ___brain

A

hind

29
Q

parts of the hind brain?

A

medulla
pons
cerebellum

30
Q

parts of the forebrain?

A

cerebrum

dicephalon

31
Q

cerebellum basic functions

A

balance and equilibrium

32
Q

functions of the cerebrum

A

thinking/conscious though
sensory
perception
motor movement

33
Q

functions of the dicephalon

A

homeostasis of many body functions

34
Q

4 examples of the basic functions of the dicephalon

A

hormone control
smooth muscle control
muscle control
temperature regulation

35
Q

the brain stem is in charge of maintaining the ___ such as ____

A

vital centers
breathing
blood pressure
heart beat

36
Q

what are the # layers of CT called

A

3
dura mater
arachnoid mater
pia mater

37
Q

whats the name of the CT given that consists of the dura mater, pia mater, arachnoid mater?

A

meninges

38
Q

specific name of what separates the cerebellum (be specific)

A

falx cerebelli (name of the dura mater)

39
Q

____ is the dura mater that separates the cerebellum

A

falx cerebelli

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