Edexcel GCSE PE - Cardio-respiratory system - Heart

Define cardiovascular system

• the interaction of the heart and lungs to supply oxygen to muscle during exercise.

• to do with the heart, blood and blood vessels working together.

• when veins swell up or dilate; widening of the lumen of the blood vessel to allow for increased blood flow.

• when veins shrink down; narrowing of the lumen of the blood vessel to decrease blood flow.

Define cardio-respiratory system

• the interaction of the heart and lungs to supply oxygen to muscle during exercise.

• to do with the heart, blood and blood vessels working together.

• when veins swell up or dilate; widening of the lumen of the blood vessel to allow for increased blood flow.

• when veins shrink down; narrowing of the lumen of the blood vessel to decrease blood flow.

Define vasodilation

• the interaction of the heart and lungs to supply oxygen to muscle during exercise.

• to do with the heart, blood and blood vessels working together.

• when veins swell up or dilate; widening of the lumen of the blood vessel to allow for increased blood flow.

• when veins shrink down; narrowing of the lumen of the blood vessel to decrease blood flow.

Define vasoconstriction

• the interaction of the heart and lungs to supply oxygen to muscle during exercise.

• to do with the heart, blood and blood vessels working together.

• when veins swell up or dilate; widening of the lumen of the blood vessel to allow for increased blood flow.

• when veins shrink down; narrowing of the lumen of the blood vessel to decrease blood flow.

Which is not a function of the cardiovascular system

• transport oxygen, carbon dioxide and nutrients.

• Helps blood to clot.

• It controls body temperature

• protection of vital organs.

The vessel entering the left atrium is

• pulmonary vein

• aorta

• vena cava

• pulmonary artery

The vessel leaving the left ventricle is

• pulmonary vein

• aorta

• vena cava

• pulmonary artery

The vessel leaving the right ventricle is

• pulmonary vein

• aorta

• vena cava

• pulmonary artery

The vessel entering the right atrium is

• pulmonary vein

• aorta

• vena cava

• pulmonary artery

The left side of the heart is

• oxygenated

• deoxygenated

• both