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Biology > B3 > Flashcards

B3 Flashcards

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1
Q

What is the nervous system

A

What let’s you react to what goes on around you

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2
Q

What does the CNS consist of

A

The brain and spinal chord

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3
Q

What is the role of the receptor

A

When they detect a stimulus the information is then sent as nervous impulses along a sensory nuerone to the CNS

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4
Q

What does the CNS then do about the stimulus

A

Co-ordinates a response

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5
Q

What are hormones

A

Chemical messangers in the blood

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6
Q

What is adrenaline

A

A hormone released by adrenal glands it activates a process which increases the supply of oxygen and glucose to the cells

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7
Q

What is fsh

A

Causes an egg to mature in one of the ovaries stimulates the ovaries to produce oestrogen

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8
Q

What is oestrogen

A

Causes the lining of the uterus to thicken and grow stimulates the production of Lh

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9
Q

What is LH

A

Stimulates the release of an egg at day 14

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10
Q

What is progesterone

A

Maintains the lining of the uterus

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11
Q

What happens if the blood glucose level is to high

A

Insulin is added

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12
Q

What happens if the blood glucose level is to low

A

Glucagon is added

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13
Q

What is type 1 diabetes

A

Is where the pancreas produces little or no insulin.

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14
Q

What is type 2 diabetes

A

A person becomes resistant to insulin

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15
Q

What is diabetes

A

A condition that affects your ability to control your blood sugar level

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16
Q

What does type one diabetes result in

A

The result is that the persons blood sugar levels can rise to a level that can kill them. To treat this they usually have to inject insulin several times a day usually at meal times to make sure
the glucose is removed from
the blood quickly once the food has been digested.

17
Q

What does type two diabetes result in

A

Cause blood sugar levels to rise to a dangerous level being over weight can increase your chances of of developing type two diabetes it can be controlled through exercise

18
Q

What are the stages of the menstrual cycle

A

Stage 1 the uterus lining breaks down and is released
Stage 2 the lining of the uterus builds up again - day 4-14
Stage 3 an egg is developed and released- day 14
Stage 4 the lining is then maintained- until 28

Biology (3 decks)

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