| A | B |
|---|
| Erythrocytes | Red Blood Cells |
| Lymphocytes | White blood cells |
| Bi-concave disc shaped | Erythrocytes or red blood cells |
| Function to carry waste substances from the cells | veins and venules |
| Haemoglobin | protein substance capable of carrying oxygen |
| Nutrients pass through the semi-permeable membrane by which process? | Diffusion |
| These vessels have thicker muscular walls to accommodate higher pressure | Arteries |
| Function of Thromboyctes or platelets | Series of chemical reactions enable the blood to clot |
| Vessels have valves to stop back flow of blood | veins |
| Function of Plasma | transport blood cells, hormones, nutrients, gases. |
| Phagocytes | engulf bacteria |
| Lymphocytes | produce anti-bodies |
| Structure of capillaries | epithelial tissue - one cell thick |
| loss of elasticity in these vessels causes? | arterial sclerosis |
| Blood pressure | the force exerted on the sides of the arteries |
| Baroreceptors | are stimulated by changes in blood pressure in the carotid arteries |
| Haemophilia | Congenital condition where deficient clotting factor(s) in the blood |
| Deficiency Anaemia is caused by? | Lack of iron in the diet |
| Red Blood Cells are made in? | Bone marrow |
| Red blood cells are destroyed in? | the spleen and liver |
