pps neuro

Question 1

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

Answer 1

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

Question 2

dorsal root vs dorsal root ganglion vs sensory body

Answer 2

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

Question 3

dorsal root ganglion contains the ___ ___ of ___ neurons

Answer 3

cell bodies

sensory

Question 4

The sensory body passes through?

Answer 4

dorsal root ganglion

Question 5

posterior horn vs anterior horn

Answer 5

posterior horn
contains neuron cell bodies that synapse with afferent neurons

anterior horn
contains neuron cell bodies that send efferent axons

Question 6

lateral horns are ?

Answer 6

autonomic neuron cell bodies

Question 7

dorsal root aka

Answer 7

sensory root of a spinal nerve

Question 8

columns of white matter?

Answer 8

3
dorsal
ventral
lateral

Question 9

__ 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

Answer 9

anterior horns
gray commisure
posterior horns
lateral horns

Question 10

a mixed nerve consists of

Answer 10

both efferent and afferent fibers

Question 11

ventral root vs ventral ramus

Answer 11

ventral root
casing of the nerves

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

Question 12

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

Answer 12

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

Question 13

efferent nerve fibers
carries ______ from ____ to ____

afferent nerve fibers
carries ____ from ____ to _____

Answer 13

impulses
CNS to Periphery

impulses
periphery to CNS

Question 14

Cns > periphery _____

Answer 14

efferent nerve fibers

Question 15

periphery > CNS ___

Answer 15

afferent nerve fibers

Question 16

efferent fibers aka

Answer 16

somatic motor fibers

Question 17

efferent (somatic motor ) fibers are found in the ___

Answer 17

ventral root

Question 18

Afferent nerves conduct nerve impulses from___ to __

Answer 18

receptors to the CNS

Question 19

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

Answer 19

presence/absence of myelin sheath

Question 20

_____ contains cell bodies of sensory neurons

Answer 20

dorsal root ganglion

Question 21

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

Answer 21

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.

Question 22

definitions

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

Answer 22

medial

lateral

Question 23

crossectional view of spinal cord segment:

_____ horn is inferior to _____ but superior to ____

Answer 23

lateral
dorsal
ventral

ie (lateral - middle)

Question 24

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

Answer 24

ventral/anterior grey horn

Question 25

autonomic ( ___) motor neurons

Answer 25

visceral

Question 26

somatic motor neuron vs somatic sensory neuron

Answer 26

?

Question 27

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

Answer 27

cerebellum

Question 28

cerebellum is part of the ___brain

Answer 28

hind

Question 29

parts of the hind brain?

Answer 29

medulla pons cerebellum

Question 30

parts of the forebrain?

Answer 30

cerebrum | dicephalon

Question 31

cerebellum basic functions

Answer 31

balance and equilibrium

Question 32

functions of the cerebrum

Answer 32

thinking/conscious though sensory perception motor movement

Question 33

functions of the dicephalon

Answer 33

homeostasis of many body functions

Question 34

4 examples of the basic functions of the dicephalon

Answer 34

hormone control smooth muscle control muscle control temperature regulation

Question 35

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

Answer 35

vital centers breathing blood pressure heart beat

Question 36

what are the # layers of CT called

Answer 36

3 dura mater arachnoid mater pia mater

Question 37

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

Answer 37

meninges

Question 38

specific name of what separates the cerebellum (be specific)

Answer 38

falx cerebelli (name of the dura mater)

Question 39

____ is the dura mater that separates the cerebellum

Answer 39

falx cerebelli