The nervous system Flashcards

1
Q

Neurons

A

the actual nerve cells of the body

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2
Q

cerebrum

A

involved in conscious thought, memory and interpreting sensory info

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3
Q

cerebellum

A

controls skeletal movements such as running and swimming

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4
Q

hypothalamus

A

controls the body’s automatic systems.
physical effects of emotions, hunger and thirst.

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5
Q

medulla oblongata

A

parts of the brain stem that regulates vital body functions

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6
Q

pons

A

helps the medulla oblongata in regulating respiration

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7
Q

axons

A

carries nerve impulses away from the cell body in the neuron

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8
Q

spinal cord

A

bundle of nerves in the spinal cavity

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9
Q

limbic system

A

part of the brain that helps generate and regulate emotions and coordinate overall brain activity

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10
Q

reflex

A

a signal from the spinal cord to protect the body, and makes the muscles move before the brain knows what is happening

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11
Q

brain

A

most important and complex part of the nervous system
controls bodily functions

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12
Q

autonomic nervous system

A

unconsciously controlled functions of the body

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13
Q

central nervous system

A

brain and spinal cord work together to communicate with the rest of the body

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14
Q

What are the 2 parts of the nervous system ?

A

central nervous system and peripheral nervous system

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15
Q

what are the 3 types of neurons ?

A

sensory neurons
motor neurons
interneurons

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16
Q

frontal lobe

A

part of the brain that is associated w/ personality, judgement and self controls

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17
Q

parietal lobes

A

analyzes the senses.
makes judgements about shape and texture

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18
Q

meninges

A

triple layer of tissue that protects brain and spinal cord

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19
Q

what does neuro- refer to ?

A

the brain

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20
Q

What doctor treats diseases and disorders of the nervous system ?

A

neurologist

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21
Q

What side of the brain is responsible for creativity ?

A

right side

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22
Q

what part of the brain is responsible for vision ?

A

occipital lobes

23
Q

what part of the brain is responsible for seanses ?

A

temporal lobes

24
Q

who made the world’s smallest nerf gun out of DNA?

A

Mark Rober

25
Q

All the nerve fibers connecting the brain and the spinal cord must pass through; what?

A

brain stem

26
Q

What sensory receptors are responsible for touch and pressure ?

A

mechancoreceptors

27
Q

What sensory receptors respond to heat and cold ?

A

thermoreceptors

28
Q

What nerve endings are sensitive to chemicals ?

A

chemoreceptors

29
Q

What are the 3 types of neurons ?

A

sensory
motor
interneurons

30
Q

which neurons transmit information to the CNS from the senses and pain ?

A

sensory

30
Q

which neurons relay singnals from the CNS to other parts of the body ?

A

motor

31
Q

which neurons are found only in the CNS and are responsible for information processing by the brain and spinal cord?

A

interneurons

31
Q

What is the tough outermost layer of the eye consists of what 2 parts ?

A

sclera (white part)
cornea ( transparent part)

32
Q

Which is the colored part of the eye called ?

A

iris

33
Q

what is the center of the iris called ? This is where light enters into the eye

A

pupil

34
Q

This is the thin layer of light sensitive nerve cells at the back of the eye

A

retina

35
Q

What are the 2 types of cells in the retina ?

A

rod cells and cone cells

36
Q

What is the optic nerve ?

A

These are the nerve fibers where nerve impulses from the retina are sent to the occipital lobe of the brain.

37
Q

What is hyperopia ?

A

unable to clearly focus on objects nearby - Also called farsightedness

38
Q

What is myopia ?

A

unable to to clearly focus on distant objects; also known as near sightedness

39
Q

What are pain receptors ?

A

brain nerve endings that react to a particular type of strong stimulus

40
Q

What are the 3 parts of a neuron ?

A

cell body / dendrite / axon

41
Q

What does the dendrite of the neuron do ?

A

receives the impulse from other neurons and sends them to the cell body

42
Q

what does the axon of the neurons do ?

A

carries nerve impulses away from the cell body

43
Q

what does the cell body of the neuron do ?
This is also found on the spinal cord.

A

sends and receives nerve impulses and controls the cell’s growth.

44
Q

What is the result of fears and apprehensions that interfere w/ everyday life?
(irrational or excessive fears)

A

anxiety disorders

45
Q

This can be simply defined as the challenges that face us in life and our responses to those challenges.

A

stress

46
Q

What eating disorders mainly affects females and is described as self induced starvation ?

A

anorexia

47
Q

What eating disorder is described as binge eating followed by vomiting ?

A

bulimia

48
Q

HOw do scientists rate the loudness of sounds ?

A

decibels

49
Q

what part of the ear is a sound gathering trumpet and a short tube?

A

auditory canal

50
Q

this is a thin membrane that is stretched across the end of the auditory canal

A

eardrum

51
Q

this is a snail shaped fluid filled chamber within the temporal bone

A

cochlea