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Flashcards in CNS Part 1 Deck (96)
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1

Somatic responsible for

Voluntary muscle movement

2

Autonomic responsible for

Involuntary muscle movement. Mildly influenced by conscious thought

3

Sympathetic

Fight or flight

4

Parasympathetic

Rest and digest

5

Afferrent

Info coming back into brain.

6

Efferent

Info leaving brain to get a response

7

General functions CNS 3

Sensory perception
Info processing, integration, storage
Motor and behavior

8

White matter

What concentration of myelin
General number of neurons

High, few. Highly vascular

9

Gray matter

High density of __ and ___. __ also present. Requires a lot of ___ and very ___

Neurons, dendrites, axons. ATP. Vascular

10

Nucleus: a cluster of neurons ___ CNS

In

11

Ganglion: cluster of ___ ___ the CNS

Neurons outside

12

Cortex is ___ layers of ___

Dense, neurons

13

Tract: ___ within CNS traveling as a ___

Example

Axons, group

Spine cerebellum

14

Pathway

Similar to a ___ however it relates more to ___ connected neurons performing a ____

Tract, synaptically, function

15

___ matter more metabolically active than ___ matter. Also more vascularized

Gray, white

16

1st order neurons

2nd order neurons

Third order neurons

Dorsal root ganglion

Spinal cord

Thalamus

17

Associated nerves with spinal cord: __ and __ __
Primary functions 3

Dorsal and ventral roots

Sensory input, reflex circuits, somatic and autonomic motor output

18

The brain stem is composed of 3

Medulla, pons, midbrain

19

The brain stem
Associated nerves

12 cranial nerves

20

The brain stem primary functions:
Sensation and motor control of the __, __, and __
Input of special senses 3

Head, neck, and face

Taste, hearing, balance

21

Brain stem primary functions
Mediate functions such as decreases __ and __, increased __ in gut, and pupillary ___

CO and BP
Peristalsis
Constriction

22

Brain stem functions: a conduit of __ and __ pathways that carry __ and __ info to other areas in the __

Ascending and descending
Sensory and motor
CNS

23

Reticular formation is part of __ __. Functions to __ __, exclude __ __, and regulate __

Brain stem
Filter info
Irrelevant stimuli
Arousal

24

Medulla associated nerves: __-__
Functions: subconscious __ and __ control. Early relay nuclei in __, __, __, and __/__ input
___ reflexes

8-12
CV, respiratory
Balance, auditory, gestation, head/neck
Brain stem

25

Pons:
Nerves __-__
Functions: __ control, __ control, motor control of the __

5-8

Respiratory, urinary, eye

26

Pons functions:
Sensation and motor control of the ___
Ventral: __ nuclei relay movement and sensation info from __ to __
Dorsal: __ and __

Face
Pontine, cortex to cerebellum
Taste and sleep

27

Midbrain
Nerves __-__
Functions: __ relay and mapping. ___ movement, __ and __ reflexes

3-4

Acoustic, eye, lens and pupillary

28

Midbrain functions

__ modulation
Contains nuclei and relay pathways __ for __ coordination (ex in __ __)

Pain

Critical, motor, substantia Nigra

29

Cerebellum
Associated nerve:
Functions: __&__ (___ input from __ __, __ __, vestibular organs of __ __)

VIII
Coordination and equilibrium
Somatosensory, spinal cord, cerebral cortex, inner ear

30

Cerebellum functions
___ learning, __ association/___

Motor, sensory/language