Homeostatis Flashcards

1
Q

What is homeostasis

A

The fancy word for keeping the conditions in your body and cells at the right level. This happens in response to changes inside and outside of the body

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2
Q

Why is homeostasis important

A

Your cells need the right conditions to work properly e.g. enzymes

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3
Q

What are examples of control systems

A

-body temperature
-blood glucose level
-water level
(They are automatic)

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4
Q

Control systems are made up of 3 main parts

A
  • receptors
  • coordination centres
  • effectors
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5
Q

The nervous system is made up of different parts:

A
  • CNS
  • receptors
  • sensory neurons
  • Motor neurons
  • effectors
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6
Q

What makes up the central nervous system

A

The brain and spinal cord

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7
Q

What is a synapse

A

It is where two neurones join together

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8
Q

What is a reflex and what does it do

A

Reflexes are automatic responses.

They can help stop you getting injured

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9
Q

Some Really Scary Cops Make Everyone Run

A
Stimulus 
Receptor 
Sensory neurone 
CNS
Motor neurone
Effector 
Response
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10
Q

What is reaction time

A

Reaction time is the time it takes to respond to a stimulus

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11
Q

What is the pituitary gland also referred to as

A

The master gland

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12
Q

What does thyroid produce

A

Thyroxine

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13
Q

What does the ovaries produce

A

Oestrogen

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14
Q

What does the adrenal gland produce

A

Adrenaline

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15
Q

What does the testes produce

A

Testosterone

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16
Q

What does the pancreas produce

A

Insulin

17
Q

What reduced blood glucose level

A

Insulin

18
Q

What is type 1 diabetes

A

It is where the pancreas produces little or no insulin

19
Q

What is type 2 diabetes

A

It is where a person becomes resistant to their own insulin so their body doesn’t respond properly to it

20
Q

What is a hormone

A

It is a chemical messenger that travels in the blood

21
Q

FSH causes:

A

An egg to mature in one of the ovaries

22
Q

LH causes:

A

The release of an egg (ovulation)

23
Q

What is one method of contraception

A

Using a condom during intercourse

24
Q

What is an advantage of using a condom

A

It is the only form of contraception that will protect against STDs

25
Q

What is sterilisation

A

It involves cutting or tying the Fallopian tubes

In males, it involves cutting or tying the sperm ducts

26
Q

What is an intrauterine device (IUD)

A

It is a T-shaped device that’s inserted into the uterus

It can stop fertilised eggs from implanting in the uterus wall