Biology B5 OCR Gateway Revision

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  • Created by: charlotte
  • Created on: 08-06-13 13:43
3 advantages of having an endoskeleton
Can grow with body, easy to attach muscles, flexible
1 of 20
3 types of fractures
simple, compound, green stick
2 of 20
What type of circulatory system do humans have, how many chambers and how many times does the blood go round in a full circuit
double circulatory system, 4 chambers, twice in a full circuit
3 of 20
name a heart condition, effect and treatment
hole in heart, allows oxygenated and de oxygenated blood to mix, can be treated by surgery. CHD, causes heart attacks by fatty acids blocking blood supply to heart,, treated by bypass surgery. damaged valves, high blood pressure, artificial valves
4 of 20
4 blood groups
A, B, AB, O
5 of 20
when does blood clotting occur?
1. when bloody vessels are damaged 2. when blood comes in contact with air 3. to prevent too much blood being lost.
6 of 20
too much clotting causes?
strokes and deep vein thrombrosis
7 of 20
gas exchange occurs where?
aveolus
8 of 20
how does the respiratory system work?
the intercostal muscles & diaphram contract + increase volume of thorax. lungs expand and pressure is decreased
9 of 20
how are alveoli adapted for gaseous exchange?
large SA, moist surface, thin lining, permeable surface
10 of 20
what are the 4 possible lung disease causes
genetic, asthma, industrial, lifestyle
11 of 20
how do the kidneys dispose of waste?
ultrafiltration: at bowmans capsule, small molecules squeezed out under pressure. reabsorption: in tubules & loop of henle, useful substances are reabsorbed into the blood
12 of 20
4 hormones in the menstrual cycle
FSH, oestrogen, LH, progesterone
13 of 20
where is FSH made and what does it control?
made in the pituitary gland and stimulates egg and oestrogen release
14 of 20
where is LH made and what does it control?
pituitary, ovulation
15 of 20
where is oestrogen made & what does it control?
ovary, uterus lining thickens & LH is released
16 of 20
where is progesterone made & what does it control?
ovary, preserves uterus lining
17 of 20
ways to combat infertility
FSH injections, stimulates egg release. Artificial insemination. Ovary transplant.
18 of 20
organ donors must be
healthy, right size & age, have matching tissues
19 of 20
mechanical replacements
kidney, knee & hip joints, eye lens
20 of 20

Other cards in this set

Card 2

Front

3 types of fractures

Back

simple, compound, green stick

Card 3

Front

What type of circulatory system do humans have, how many chambers and how many times does the blood go round in a full circuit

Back

Preview of the front of card 3

Card 4

Front

name a heart condition, effect and treatment

Back

Preview of the front of card 4

Card 5

Front

4 blood groups

Back

Preview of the front of card 5
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