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Biology > Coordination/reflexes > Flashcards

Coordination/reflexes Flashcards

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0
Q

Pancreas

A

Monitors blood glucose

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1
Q

Chemical coordination

A

Brought on by hormones
Adrenaline
Insulin
Glucose measured

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2
Q

Insulin

A

Keeps control of your blood sugar concentration

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3
Q

Adrenaline

A

Prepares your body for fight or flight

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4
Q

The brain

A 
Cerebrum
Cerebellum
Medulla
Hypothalamus
 pituitary gland
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5
Q

Cerebrum

A

Controls conscious thought

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6
Q

Cerebellum

A

Coordination and balance

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7
Q

Medulla

A

Basic body functions

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8
Q

Hypothalamus

A

Chemical control of the body

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9
Q

Pituitary gland

A

Chemical control of the body

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10
Q

Focusing

A

By changing the shape of your lense

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11
Q

Iris

A

Controls the amount of light allowed in

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12
Q

Dim light to the eye

A

Pupil enlarges to let as much light in as possible

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13
Q

Bright light to eye

A

Pupil gets smaller so that the retina is not damaged

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14
Q

Steps of focusing

A 
Light intensity
Retina
Sensory neurone
Unconscious part of the brain
Motor neurone to iris
Iris muscles
Response (pupil size)
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15
Q

Where are sensory receptors found

A

Sense organs

16
Q

Sense organs

A 
Eye
Ear
Tongue
Nose 
Skin
17
Q

Sense muscles

A

Pressure
Temperature
Pain

18
Q

Reflexes: breathing

A

The reflex takes place

Impulses travel to the unconscious brain

19
Q

neurone

A

A nerve cell
Cell body + dendrites + an axon
Carry electrical impulses

20
Q

Nerve

A

Neurones together

21
Q

Synapse

A

The gap where a neurone end and another begins

22
Q

How synapses work

A

Electrical nerve impulse cannot cross the gap
Chemical transmitters are released
These diffuse across the gap

23
Q

Human central nervous system (CNS)

A

Brain+spinal cord, gives rapid response to stimuli

24
Q

Peripheral nervous system

A

Runs all over the body

Spinal nerves +cranial(brain) nerves

25
Q

CNS steps

A 
Stimulus
Receptor
Coordination
Effector
Response
26
Q

Coordination

A

Multicellular organisms have nervous and hormonal coordination and central systems

27
Q

Sensory neurone

A

Carry information from sense organs to the CNS

28
Q

Motor neurones

A

Carry instructions from the CNS to the effector organs

29
Q

Nerves

A

Sensory
Motor
Mixed

30
Q

Reflex actions

A

Do not involve conscious though

31
Q

Reflex steps

A 
Stimulus
Receptor
Sensory neurone
Relay neurone in CNS
motor neurone
Effector
Response

Biology (19 decks)

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