Biological Bases of Behavior Flashcards

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1
Q

Space or gap between the schwann cells

A

Node of Ranvier

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2
Q

Action potential

A

information is transmitted along the axon of a neuron

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3
Q

reduction in the absolute value of membrane potential. if this reaches the threshold, an action potential will be created and the neuron will fire

A

depolarization

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4
Q

Saltatory conduction

A

propagation of the chemical signal down the neuron from one node to the next

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5
Q

repolarization and hyper polarization

A

returns the membrane potential from positive to negative

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6
Q

Neurotransmitters

A

chemical messengers manufactured by a neuron. Best known: Endorphins.

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7
Q

dopamine

A

involved in movement and thought process.

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8
Q

what is dopamine associated with

A

parkinson’s disease and schizophrenia

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9
Q

Serotonin functions

A

Emotional state and sleep

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10
Q

Serotonin associated with

A

Depression
Anxiety
OCD

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11
Q

Norepinephrine functions

A

arousal, learning and memory

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12
Q

acetylcholine is linked to

A

Alzheimers disease

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13
Q

psychoactive drug has an

A

inhibitory or excitatory effect on the nervous system

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14
Q

Agonists drugs

A

mimic the effect of the neurotransmitter

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15
Q

Antagonists are drugs that

A

inhibit the effect of the neurotransmitter

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16
Q

an antidepressant drug that works as an agonist of serotonin

A

prozac

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17
Q

spinal cord deals with

A

involuntary or reflex actions

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18
Q

the brain is required for

A

voluntary movements

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19
Q

peripheral nervous system

A

connects the cns with the rest of the body through nerves. carries incoming messages to your brain and outgoing signals to your bodys muscles and glands

20
Q

carries into to the CNS and send Voluntary signals to your muscles. allows communication with the outside world

A

somatic division

21
Q

carries info to the CNS and sends voluntary signals to your muscles. regulates digestion, respiration, sleep, and other vital functions

A

Autonomic division of the PNS

22
Q

a system of hormones that carries messages through different glands

A

Endocrine system

23
Q

Hypothalamus

A

receives signals and propagates the endocrine response. alows us to sense a need like hunger or thirst

24
Q

pituitary gland

A

master gland

regulates the activity of other glands like the hypothalamus

25
Q

thyroid controls

A

metabolism

26
Q

located at the top of the kidneys. secrete hormones that cause fight or flight

A

Arenal Glands

27
Q

pituitary secretes

A

oxytocin
growth hormone
Prolactin (milk production)

28
Q

sympathetic nervous system

A

flight or fight

29
Q

parasympathetic

A

return to homeostasis

30
Q

tools for brain research

A

EEG
PET
CT
MRI

31
Q

Medulla controls

A

vital life function: breathing, circulation, swallowing

32
Q

Pons

A

Contains axons that cross from one side of the brain to the other. responsible for sleep, walking, and dreaming

33
Q

cerebellum is responsible for

A

coordinating fine muscle movement and maintaining posture and equilibrium

34
Q

runs through the center of the midbrain. helps regulate attention, arousal, and sleep

A

Reticular formation

35
Q

Thalamus

A

receives input from all of the senses, except smell

36
Q

hippocampus

A

new memories

37
Q

amygdala

A

production and regulation of emotion. Aggression, fear, disgust

38
Q

Left hemisphere

A
controls muscles for speech 
controls movements
spontaneity
memory for words and numbers  
understanding speech and writing
39
Q

Right Hemisphere

A
response to commands 
memory for shapes
memory for music
understanding spatial relationships
understanding images
40
Q

corpus Callosum

A

connects the brains hemispheres

41
Q

responsible for abstract thought and emotional control

A

frontal lobes

42
Q

parietal lobes

A

receive and interpret bodily sensations

43
Q

temporal lobes

A

process incoming sensory info from the ears. contain Wernickes area

44
Q

Occipital lobes responsible for

A

vision and visual perception

45
Q

Chain of cells that propagates the nervous signal

A

Schwann Cell