| A | B |
|---|
| Blood pressure (arterial and venous) | The pressure of the blood in the arteries and veins respectivley |
| Blood vessels | Tubes that convey blood around the body |
| Capillaries | Small, thin walled blood vessels connecting arterial and venous blood systems and allowing the excange of materials between blood and tissues |
| Cardiac arrest | Heart attack caused by a blockage of one of the coronary arteries |
| Coronary arteries | The two main arteries that arise from the the aorta and carry blood to the heart muscle |
| Diastole | Relaxation of the heart muscle |
| Diastolic pressure | Blood pressure in the arteries when the heart is relaxed between contrations |
| Haemoglobin | Oxygen carrying protein of red blood cells |
| Hypertension | High blood pressure, unstable or constant elevation of blood pressure above the normal range |
| Hypertrophy | An inrease in the size of muscle tissue |
| Maximum oxygen consumption | The level of oxygen an individual can consume and utilise in one minute |
| Pulmonary artery | The artery extending from the right ventricle of the heart, carries venous blood to the lungs for reoxygenation |
| Stroke | A blood clot or ruptured blood vessel in the brain |
| Stoke volume | The volume of blood ejected by each ventricle of the heart during a systole, the period of a single cardiac contraction |
| Systole | Contraction of the heart muscle |
| Systolic pressure | The highest level to which arterial blood pressure rises, following the ejection of blood from the left ventricle |
| Vena cava (superior and inferior) | The main veins carrying blood into the heart from the upper and lower body respectivly |
