F2 - SEM2 - Sensing the Environment - 10.6 Brain and our senses Flashcards

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1
Q

What is the role of our brain?

Role of our brain

A

As a coordinator
* integrate and interpret information from different sensory cells
* produce senses and decides what to do
* send message to body parts to bring about response

Role of our brain

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2
Q

Explain the process of detect stimuli and make response

Role of our brain

A
  • special sensory cells - detect stimuli and send message to brain
  • brain - integrate and interpret information and send message to body
  • body parts - bring out response

Role of our brain

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3
Q

What is reaction time?

Reaction time

A

time taken to respond a stimulus

Reaction time

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4
Q

True or False?

Reaction time is the same for all person

Reaction time

A

False
Reaction time varies from person to person

Reaction time

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5
Q

What is the largest part of the brain?

A

Cererbum

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6
Q

What are the function of cerebrum?

Cerebrum

A
  • integrate and interpret messages to produce senses
  • send messages to different body parts to bring out responses
  • responsible for intelligence - enable us to think, make decision and have memories

Cerebrum

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7
Q

How does illusion happen?

Cerebrum

A

our brain interpret messages from sensory cells incorrectly

Cerebrum

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8
Q

How does drugs affect our brain?

Effects of drugs on our judgements, responses and health

A
  • lower our ability to judge
  • slow down our response
  • make us lose control of our movement
  • cause illusion

Effects of drugs on our judgements, responses and health

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9
Q

How are other effects of drugs on health?

Effects of drugs on our judgements, responses and health

A
  • mental disorder
  • stroke
  • damage to liver, brain and kidney
  • heart attack
  • abnormal pain
  • Urinary problem (need to urinate frequently, pain and blood in urine)

Effects of drugs on our judgements, responses and health

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10
Q

True or False?

Drugs are addictive. Drug addicts’ live become dependent on drugs.

Effects of drugs on our judgements, responses and health

A

True
Drugs are addictive. Drug addicts need larger and larger amount of drugs to feel satisfied.

Effects of drugs on our judgements, responses and health

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11
Q

Give some examples of how to say NO to drug.

Effects of drugs on our judgements, responses and health

A
  • say NO directly and firmly
  • say NO using an excuse
  • say NO with a counter proposal

Effects of drugs on our judgements, responses and health

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12
Q

Besides drugs, name 2 substances that also badly affect our judgement, responses and health

Effects of alchol and organic solvents on us

A

Alcohol and organic solvents

Effects of alchol and organic solvents on us

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13
Q

Where alcohol can be found?

Effects of alchol and organic solvents on us

A

beer and wine

Effects of alchol and organic solvents on us

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14
Q

What are the effects of alcohol on our body?

Effects of alchol and organic solvents on us

A
  • slow down our reaction
  • impair judgement and body coordination
  • impair memory, sight and hearing - slurred speech
  • brain damage, liver damage
  • death - heavy drinking over a long period

Effects of alchol and organic solvents on us

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15
Q

Where organic solvents can be found?

Effects of alchol and organic solvents on us

A

some household product, e.g. thinner and paints

Effects of alchol and organic solvents on us

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16
Q

Explain why sniffing the vapor given off from the solvents is highly dangerous

Effects of alchol and organic solvents on us

A

irritate the eyes and the breathing system
cause lung and brain damage
increase heart rate
lose of judgement and muscle control
death

Effects of alchol and organic solvents on us