Module 10: Central and Peripheral Nervous System (from review) Flashcards Preview

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Flashcards in Module 10: Central and Peripheral Nervous System (from review) Deck (21):
1

4 main regions of brain

cerebrum
diencephalon
brain stem
cerebellum

2

4 lobes of cerebrum

frontal (movement)
parietal (sensations)
temporal (hearing and smelling)
occipital (vision)

3

frontal lobe

movement of voluntary skeletal muscle
concentration, planning, problem solving

4

parietal lobe

sensations of temp, touch, pressure, pain
understanding speed and using words

5

temporal lobe

hearing and smelling
memory

6

occipital lobe

vision
combining images with other sensory experiences (sounds, odours)

7

spinal cord

transmits impulses to and from brain

8

CSF where is it found

water, traces of proteins glucose and lymphocytes
Found in subarachnoid space within cavities of brain and spinal cord

9

CSF how is it formed

separation of fluid from blood in the choroid plexuses (ventricles in brain) and is released by ependymal cells

10

CSF function

forms a cushion around brain/spinal cords
nourishes brain/SC
removes waste from nervous tissue and brings into venous blood

11

functional classification of sensory receptors

mechanoreceptors (touch, pressure, vibration, stretch, itch)
Thermoreceptors
Photoreceptors
Chemoreceptors (chemicals in mouth, nose, body fluids)
Nociceptros (detect pain)

12

Sensory receptors based on location

exteroceptors (near body surface, external environment)
Interoceptors (internal organs/blood vessels)
Proprioceptors (skeletal muscle, joints, tendons, bones etc)

13

Nerve structure

bundles of nerve fibres surrounded by epineurium, perineurium, endoneurium

14

12 cranial nerves

O O O To Touch A Fucking Virgin Girls Vagina Ah Hah
Olfactory (smell)
Optic (vision)
Oculomotor (Eyelid/ball)
Trochlear (eyes downward)
Trigeminal (chewing)
Abducens (turns eye laterally)
Facial
Vestibulocochlear (hearing)
Glossopharyngeal (taste)
Vagus (blood pressure, heart rate)
Accessory (swallowing)
Hypoglossal (tongue)

15

Autonomic nervous system

part of PNS
proper functions of internal organs
Automatic and operates unconsciously
2 divisions: sympathetic and parasympathetic

16

Sympathetic nervous system (of the ANS)

active in stressful situations
"fight or flight"

17

Parasympathetic nervous system

active in non stressful situations
"feed and breed", "rest and digest"

18

Thoracolumbar outflow

another name for sympathetic nervous system "fight or flight"

19

MS

autoimmune disease of CNS
loss of transmission of impulses
no cure

20

Sciatica

form of neuritis

21

Aging and the nervous system

balance impaired at age 65
muscle coordination deteriorates
Low blood pressure
Sense of smell and taste declines
Reflexes decline