Chapter 3 Flashcards

1
Q

Neurons

A

Communication cells
React and respond to stimuli
Learn and Store information about the environment

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2
Q

Glial Cells

A

“Glue”

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3
Q

Types of Glial Cells

A

Astrocytes
Oligodendrocytes
Microglia

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4
Q

Astrocytes

A

Fill the space between neurons
Regulate how far neurotransmitters can spread

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5
Q

Oligodendrocytes

A

Produce myelin

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6
Q

Microglia

A

Remove debris from the nervous system

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7
Q

Parts of Neurons

A

Dendrites - Soma - Axon - Terminal buttons

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8
Q

Dendrites

A

Receive information from other neurons

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9
Q

Soma

A

Contains genetic information

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10
Q

Axon

A

Carries electrical impulse to transmit information

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11
Q

Terminal Buttons

A

Release neurotransmitters into synaptic cleft

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12
Q

Synapse

A

Site of transmission of electric nerve impulses between two neurons

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13
Q

Neurotransmitters

A

Chemical messengers in body

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14
Q

Glutamate

A

Excitatory neurotransmitter

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15
Q

GABA

A

Inhibitory neurotransmitter

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16
Q

Dopamine

A

Reward and Learning

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17
Q

Serotonin

A

Regulated eating, sleeping and emotions

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18
Q

Norepinephrine

A

Fight of Flight Stress response

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19
Q

Acetylcholine

A

Used by motor neurons

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20
Q

Nucleus

A

Group of cell bodies

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21
Q

Tract

A

Large collection of axons

22
Q

Fissure

A

Cleft in the cortex - must reach the ventricles

23
Q

Sulcus

A

More shallow cleft

24
Q

Gyrus

A

Ridge in the cortex (Bumps of the brain)

25
Q

Logitudinal Fissure

A

Deep cleft between the left and right hemispheres

26
Q

Grey matter

A

Outermost layer of the brain (Unmyelinated)

27
Q

White matter

A

Myelinated axons that connect regions of brain

28
Q

Central Nervous System

A

Brain and Spinal Cord
Encased in bone

29
Q

Peripheral Nervous System

A

Nerves carrying information to and away from the CNS
Not enclosed in the bone

30
Q

Autonomic system

A

Regulation of internal states
- Sympathetic
- Parasympathetic

31
Q

Sympathetic Nervous System

A

Quick responses to prepare body for vigorous activity (Arousal)

32
Q

Parasympathetic Nervous System

A

Non emergency behaviours (Calming)

33
Q

Parts of Hindbrain

A

Cerebellum
Pons
Medulla Oblongata
Reticular Formation

34
Q

Cerebellum

A

Coordinating movement and balance

35
Q

Pons

A

Links Brain to spinal cord
Unconscious process like sleeping and breathing

36
Q

Medulla Oblongata

A

Breathing blood pressure heart rate and other autonomic functions

37
Q

Cerebellar Agenesis

A

Impairment of motor functions, especially an inability to coordinate voluntary movements

38
Q

Parts of Midbrain

A

Superior Colliculus
Inferior Colliculus

39
Q

Superior Colliculus

A

Directing Gaze, object directed behaviour

40
Q

Inferior Colliculus

A

Main auditory (sound) center of the body

41
Q

Parts of Forebrain

A

Thalamus
Hypothalamus
Cerebral cortex
Basal Ganglia
Limbic System

42
Q

Thalamus

A
  • Relaying centre for motor and sensory signals
  • Regulates sleep, alertness and wakefulness
43
Q

Hypothalamus

A

Regulates body temperature
Hunger
Thirst
Mood
Sex drive
Blood pressure
Sleep

44
Q

Cerebral Cortex

A

Higher congnitive functions

45
Q

Basal Ganglia

A

Motor function; Motor Learning

46
Q

Limbic System

A

Emotion, memory, spatial navigation, smell

47
Q

Components of the limbic system

A
  1. Hippocampus
  2. Amygdala
  3. Olfactory bulb
  4. Thalamus and Hypothalamus
48
Q

Corpus Callosum

A

Bundle of myelinated nerve fivers that connects the two hemispheres

49
Q

Callosal Agenesis

A

Missing Corupus Callosum

50
Q

What protects the bone

A

Bone
Meninges
Ventricular System
Blood Brain barier

51
Q

2 parts of the meninges

A

Arachnoid matter
Pia matter