Year 9 SE Flashcards

1
Q

How many days does a menstrual cycle last for ?

A

28 days

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2
Q

What happens on Day 0 of menstruation?

A

Menstruation

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3
Q

What happens on Day 0-14 of menstruation?

A

Builds up uterus lining

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4
Q

What happens on Day 14 of menstruation?

A

Ovulation

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5
Q

What happens on Day 28 of menstruation?

A

Maintain uterus lining

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6
Q

What does FSH do ?

A

Stimulates egg maturation

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7
Q

What does LH do ?

A

Stimulates ovulation

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8
Q

What does oestrogen do ?

A

Causes uterus lining to build up

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9
Q

What does progesterone do ?

A

Maintains uterus lining

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10
Q

What do glands produce ?

A

Hormones

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11
Q

What are hormones ?

A

Chemical messengers

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12
Q

What are hormones transported through ?

A

Bloodstream

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13
Q

What does the ovaries produce ?

A

Oestrogen

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14
Q

What and where does the thyroid gland produce ?

A

Thyroxine in the neck

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15
Q

What does the testes produce ?

A

Testosterone

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16
Q

What and where does the pituitary gland produce ?

A

FSH, LH in the brain

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17
Q

What does the pancreas produce ?

A

Insulin

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18
Q

What and where does the adrenal gland produce ?

A

Adrenaline in the kidneys

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19
Q

What and where does the salivary gland produce ?

A

Saliva in the mouth

20
Q

What happens when there’s too much glucose in blood sugar ?

A
  1. Too much glucose
  2. Pancreas produces insulin
  3. Insulin changes glucose to glycogen into liver
  4. Blood glucose decreases back to normal
21
Q

What happens when there’s too little glucose in blood sugar ?

A
  1. Too little glucose
  2. Pancreas produces glucagon
    3.Glucagon changes glycogen to glucose
  3. Blood glucose increases back to normal
22
Q

List the 3 neurones

A

Sensory, relay, motor

23
Q

Where’s the sensory neurone ?

A

Receptor to coordinator

24
Q

Where’s the relay neurone ?

A

Coordinator

25
Where’s the motor neurone ?
Coordinator to effector
26
What is homeostasis?
Regulation of internal environment
27
Give some examples of homeostasis
Temperature, blood sugar, water levels
28
What’s negative feedback ?
Counteracting response
29
What’s positive feedback
Amplifying response
30
What’s the required practical ?
The test for reflex actions with a ruler
31
What’s the independent variable for the required practical ?
With/ without music (the thing you change)
32
What’s the dependent variable for the required practical ?
Ruler measurement (the thing you measure)
33
What’s the control variable for the required practical ?
Same ruler, same person (the thing you keep the same)
34
What’s the purpose of a reflex action?
Protect from danger
35
Give some examples of reflex action
Blinking, breathing
36
What is a reflex action ?
A quick automatic response
37
What are the 2 differences between nervous system and endocrine system ?
N- faster effect, act for shorter E- slower effect, act for longer
38
Name the 4 contraception techniques
Natural, chemical, barrier, surgical
39
Give some examples of natural contraception
Abstaining from sex, monitor body temp
40
Give some examples of chemical contraception
Pill, transplant, iud
41
Give some examples of surgical contraception
Vasectomy (male), sterilisation (female)
42
Give some examples of barrier contraception
Condom, diaghram
43
How does barrier method work ?
Prevent sperm from reaching the egg
44
How does surgical method work ?
Sperm duct/oviduct is tied
45
How does chemical method work ?
Have hormones to stop FSH and LH production so no egg matures and no ovulation.