Term
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Definition
| mainrenace of a constant internal enviroment |
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Term
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Definition
Mouth
Oesophagus
Stomach
Small Intestine
Large Intestine
Anus |
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Term
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Definition
| Chews the food and breaks down larger molecules |
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Term
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Definition
| The food chute to the stomach |
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Term
Stomach (3 things)
1) What happens
2) produces
3) produces and why |
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Definition
Pummels food with muscular walls
Produces protease enzymes
produces hydrochloric acid to kill bacteria and to give the right pH for protease to work |
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Term
Small Instestine (3 things)
1) enzymes
2) shape
3)what happens there |
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Definition
Produces the protease, amylase, and lipase enzymes
Long, folded to get greater surface area. Villi, finger shaped, cover the inner surface area
food is absorbed intot he blood |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Amylase breaks down starch |
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Term
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Definition
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Term
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Definition
| Bile emulsifues fats and neutralizes stomach acid |
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Term
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Definition
| Produces Amylase, protease, and lipase enzymes |
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Term
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Definition
| Bile is stored before going into the intestine |
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Term
| WHAT Type of molecules do bread, potatos, amd Muesli produce |
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Definition
| Starch----------------Glucose molecules |
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Term
| WHAT Type of molecules do meat, eggs, fish produce |
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Definition
| Protiens ------Amino acids |
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Term
| Butter, cooking oil, sausages |
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Definition
| Fat---------------Fatty acids and glycerol molecules |
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Term
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Definition
| 1)carry oxygen to all the cells in the body |
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Term
| What is the red blood cell's shape? |
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Definition
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Term
| What does red blood cells contain? |
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Definition
| 3)contain haemogoblin when combined with oxygen which is gery red and contains a lot of irons |
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Term
| What does red blood cells not have? |
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Definition
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Term
| What is the main job of a white blood cell? |
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Definition
| defence againbst diseases |
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Term
| What do white blood cells have? |
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Definition
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Term
| WBC produce two things and why? |
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Definition
| They produce antibodies to fight bacteria and antitoxins to neutralise the toxins produced by bacteria. |
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Term
| What is plasma and what does it look like? |
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Definition
| Plasma is a straw coloured liquid that carries almost everything |
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Term
| What are a few of the things that plasma carries |
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Definition
| Pasma carries RBC and WBC, nutrients, Carbon Dioxide, Urea, Hormones, and antibodies and antitoxins |
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Term
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Definition
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Term
| What to platelets not have? |
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Definition
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Term
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Definition
1) removes urea from blood
2)adusts ions in the blood
3)adusts the water content in blood |
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Term
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Definition
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Term
| Name the parts of the eye |
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Definition
Iris
Cornea
pupil
lens
cilary muscle
optic nerve
blind spot
fovea
retina
sclera
suspensory ligaments |
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Term
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Definition
| Circular muscles contratc, the iris closes up...pupil gets smaller |
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Term
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Definition
| Radial muscles contrract...iris opens up...pupil gets bigger |
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Term
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Definition
| Ciliary muscles relax and suspensory muscles contract...lens becomes thin |
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Term
| for close objects... (eye) |
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Definition
| Suspensory muscles relax and ciliary muscles contract...lens becomes fat |
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Term
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Definition
Cell body
nucleus
axon
synapse |
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Term
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Definition
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Term
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Definition
| Receptor------sensory neurone-------relay neurone---------motor neurine--------effectr------response |
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Term
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Definition
| eye, ear, skin, nose,tounge |
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Term
Things needed to maintain a constant body level are
(5) |
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Definition
| water levels-------------body temperature----------pressure----------carbon dioxide---------------glucose |
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Term
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Definition
| blood needs water---temp rises------starts to sweat----messages to brain------drink needed |
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Term
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Definition
| blood needs water---temp rises------starts to sweat----messages to brain------drink needed |
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Term
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Definition
| sensory cells detect increase in temp------brain recieves message and relays another message to target cells----increase sweat vasodilation------body temp. falls--normal body temp |
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Term
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Definition
| part of the brain the regukates temp. |
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Term
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Definition
| When blood vessells near the skin contract. |
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Term
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Definition
| when blood vessells expand near the skin |
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