| The purpose of the atrioventricular valves is to | To prevent backflow into the atria when the ventricles contract |
| A total blockage of blood in a coronary artery will result in | A myocardial infarction |
| what is an embolus | Anything that travels through a blood vessel until it reaches a vessel that is too small to let it pass |
| why does oxygen moved from the alveoli into the blood | because of passive transport, higher concentration in the alveoli and lower concentration in the blood |
| Angina is | chest pain due to not enough blood flow to the myocardium |
| what is an aneurysm | A bulging sac in a blood vessel wall |
| what is Atherosclerosis | The presence of fatty plaques in the arteries |
| Arteriosclerosis | Degeneration of the arterial wall due to ageing |
| Arteries are | Vessels that transport blood away from the heart |
| The best description of a thrombus is | a blood clot |
| what is a pulmonary embolus | A blockage to a pulmonary artery |
| what is Deep vein thrombosis and what can it cause if left untreated | Blood clot develops in a vein deep within the body and can lead to a pulmonary embolus |
| what is Ischaemic Heart Disease | when the heart is not getting enough blood/oxygen |
| what is Atrial fibrillation | Atria quiver instead of contracting which causes ventricles to contract (HR) irregularly between 100-180bpm |
| what is Ventricular fibrillation | Rapid quivering of ventricles without ejecting blood, symptoms could include no pulse, BP or respirations or be unresponsive |
| what is Heart block | Occurs when the electrical signal that controls the heartbeat is partially or
completely blocked from reaching the ventricles |
| what is heart failure | Chronic condition which occurs when the heart is unable to pump sufficient blood to meet the metabolic needs of the body |
| what are Varicose veins | Veins become twisted and dilated from pooling of blood |
