| A | B |
|---|
| A muscular pump with two pumping chambers, primarily responsible for movement of blood | The Heart |
| Takes blood to and from the lungs | Pulmonary vessles |
| Very fine channels with very thin walls | Capillaries |
| The circulating fluid containing cells | Blood |
| High pressure due to the contraction of ventricles | Systolic |
| Low pressure due to the relaxation of ventricles | Diastolic |
| Ensure blood flow is only in one direction | Valves |
| Specialised heart cells which co-ordinate contraction | Pace Maker |
| First blood vessles to receive blood after the aorta | Coronary Arteries |
| Occurs when coronary arteries are blocked | Heart Attack |
| Blood pressure does this as it flows from Arteries to veins | Decreases |
| Blood flow through the veins is due to this | External Compression |
| The small amount of fluid which escapes the capillary cell walls | Leakage |
| these are produes in the bone marrow | Platelets, RBC, WBC |
| Yellow liquid containing ions, dissolved gases, proteins, hormones, nutrients and wastes | Plasma |
| Thin walled compartment of the heart which receives blood from the veins | Atrium |
| Vessel which directly connects capillaries to veins | Venule |
| Atrioventricular valve between right atrium and ventricle with three flaps | Tricuspid valve |
| It's most important role is returning lost proteins to blood | Lymphatic System |
| Filter the lymph of bacteria and other debris | Lymph Nodes |
