B5

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Draw a diagram of a Synovial joint
diagram here
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Why Is blood under high pressure in a circulatory system
The blood is returned to heart before going to the rest of the body (After coming from the lungs)
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Describe the cardiac cycle
1) Blood flows into atria 2) Atria contract pushing blood into ventricles 3) Ventricles contract forcing blood into the aorta and pulmonary artery
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Name contributions Harvey made to understanding of the circulatory system
1) Valves stop backflow 2) Heart pumps, not sucks 3) Same blood is circulated over and over again 4) Pulse is blood flow into arteries
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Name two clusters of pacemaker cells in heart
1) Sitro atrial Node (SAN) stimulates contraction of atria 2) Atrio ventricular node (AVN) Stimulates contraction of ventricles
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Positive and Negative of Valve surgery over transplant
(+) = No chance of rejection (-) = Can wear down and need replacement
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How does gaseous exchange occur in Human Alveoli
CO2 diffuses IN and O2 diffuses OUT into blood cells. Then at body cells O2 diffuses out of the blood cells and CO2 diffuses back in (Then cycle repeats)
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How do cilia and mucus protect the lungs
Mucus between ribs pull rib cage + Sternum up and out
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Describe three main roles of Kidneys
1) Ultrafiltration - Allowing small molecules through with high pressure but large molecules stay in blood. 2) Re absorption - All sugar, Sufficient Salt, Sufficient water. 3) Release of wastes (urea, excess salt, excess water as urine)
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Three factors affecting amount and concentration of Urine
HEAT (More sweat, less water, Higher concentration) EXERCISE (Sweat, Small concentrated urine) WATER INTAKE (more water is lower concentration)
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Describe four hormones controlling the menstrual cycle
FSH - (Causes egg to develop) OESTROGEN - (Causes lining to repair and stimulates production of LH) LH - (Stimulates release of egg and production of Proestrogen) Proestrogen - (Maintains lining, inhibits production of LH)
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Describe four types of fertility treatment
AI (Sperm mixed outside the body) FSH (Injections stimulate egg development) IVF (Given hormones stimulating egg production, then eggs fertilized and put back in) Ovary (Transplanted if absent or damaged)
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Name issues people have with fertility treatment
Throwing away ferterlised eggs is denying life, IVF increases chance of twins ect... Damaging mothers health.
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Other cards in this set

Card 2

Front

The blood is returned to heart before going to the rest of the body (After coming from the lungs)

Back

Why Is blood under high pressure in a circulatory system

Card 3

Front

1) Blood flows into atria 2) Atria contract pushing blood into ventricles 3) Ventricles contract forcing blood into the aorta and pulmonary artery

Back

Preview of the back of card 3

Card 4

Front

1) Valves stop backflow 2) Heart pumps, not sucks 3) Same blood is circulated over and over again 4) Pulse is blood flow into arteries

Back

Preview of the back of card 4

Card 5

Front

1) Sitro atrial Node (SAN) stimulates contraction of atria 2) Atrio ventricular node (AVN) Stimulates contraction of ventricles

Back

Preview of the back of card 5
View more cards

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