Structure
The chambers through which blood enters the heart
what is the atria
The vessels with elastic walls
what are arteries
The two components of blood pressure
What is systolic and diastolic blood pressure
The state of the ventricles in diastole
what is relaxed
Describe varicose veins
what is when veins bulge due to the walls and valves weakening and causing pooling of blood
The 3 main components of the circulatory system.
what is the heart, blood vessels, and blood cells
The location of gas exchange
what are capillaries
The formal name of the device that is used to measure blood pressure
What is a sphygmomanometer
The QRS of an ECG depicts
what is the contraction of ventricles
Describe cardiac arrest
what is the heart does not receive sufficient oxygen, ventricular fibrillation
The superior vena cave controls...
what is blood from the head, chest & arms
The name of the area where veins and arteries meet
what are capillary beds
The relationship between stroke volume and fitness
what is larger stroke volume indicates increased fitness
The pathway of electricity through the heart
what is: 1. SA node 2. AV node. 3. bundle of his. 4. Purkinje fibres
The function of a pacemaker
what is fixing a malfunctioning SA node
The role of the coronary vein?
What is removes CO2 and waste
The function of pulmonary Veins
what is carries oxygenated blood from lungs to heart
The conservation of heat causes...
what is vasoconstriction
The structure of intercalated discs
What is double membrane with gap junctions
Describe thrombosis
what is blockage/closing of a blood vessel, therefore reducing blood flow and increasing chances of blood clots