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Biology of psychology > Nerves > Flashcards

Nerves Flashcards

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1
Q

sensory nerves

A

I - olfactory
II - optic
VIII - vestibulochlear

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2
Q

motor nerves

A

III - occulomotor
IV - trochlear
VI - abducens
XI - accessory
XII - hypoglossal

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3
Q

mixed nerves

A

V - trigeminal
VII - facial
IX . glossopharyngeal
X - vagus

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4
Q

ANS control

A

spinal cord, medulla oblongata + midbrain, ganglia, hypothalamus

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5
Q

two parts of ANS

A
  1. sympathetic nervous system
  2. parasympathetic nervous system
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6
Q

neurotransmitters in ANS

A
  1. acetylcholine
  2. norepinephrine
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7
Q

ANS neurotransmitter for parasympathetic

A
  • acetylcholine
    but causes sweatint which is sympathetic a
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8
Q

ANS neurotransmitter for sympathetic

A
  • norepinephrine
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9
Q

what ANS system is the vagus nerve in

A

parasympathetic

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10
Q

hypothalamus function in ANS

A

integrator for autonomic functions

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11
Q

Does the ANS have 1 or 2 cells?

A

2 cells!
1 in spinal cord or brain
the other in automatic ganglion

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12
Q

sympathetic nervous system ganglia location

A

just outside spinal cord

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13
Q

parasympathetic nervous system ganglia location

A

near organs they connect with

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14
Q

adrenal medulla function

A

direct impulse from preganglionic nerve to secrete adrenaline

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15
Q

cortex influence on ANS

A
  • psychic (blushing)
  • bladder control unless it’s full
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16
Q

how many spinal nerves

A

31

17
Q

how many cervical spinal nerves

A

8

18
Q

how many thoracic spinal nerves

A

12

19
Q

how many lumbar spinal nerves

A

5

20
Q

how many sacral spinal nerves

A

5

21
Q

how many coccygeal spinal nerves

A

1

22
Q

reflex arc

A

neuronal pathway that controls reflexed so info doesn’t have to go all the way up to the brain

23
Q

somatic reflex

stages

A
  1. somatic receptors on skin, muscles tendons
  2. afferent nerves send impulses from receptor up to posterior horn of spinal cord
  3. integrating center =
  4. efferent nerve fibres carry motor nerve signals from anterior horn to muscles
  5. effector muscle carries out response
24
Q

monosynaptic reflex

A

one sensory neuron + one motor neuron

25
Q

polysynaptic reflex

A

interneurons connect afferent + efferent cells

26
Q

encephalisation quotient

A

potential measure of cog skill diff in animals

27
Q

trigeminal nerve (V)

A

sensation in face + chewing (mixed nerve)

Biology of psychology (10 decks)

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