T1L1 The heart

Question 1

Name the 4 chambers of the heart

Answer 1

Left ventricle, Left atrium, Right ventricle and Right atrium

Question 2

Name the vessel that carries oxygenated blood into the heart

Answer 2

Pulmonary vein

Question 3

Name the vessel that carries oxygenated blood to the body

Answer 3

Aorta

Question 4

Name the vessel that carries deoxygenated blood into the heart

Answer 4

Vena Cava

Question 5

Name the vessel that carries deoxygenated blood to the lungs

Answer 5

Pulmonary artery

Question 6

Name the (4) valves in the heart and where they are located

Answer 6

Bicuspid valve - between the left atrium and left artery

Tricuspid valve - between the right atrium and right artery

Semilunar valves x2 - in pulmonary artery out of the heart, other in aorta out of the heart

Question 7

Name the three stages of the cardiac cycle in order

Answer 7

1. Atrial Systole
2. Ventricular systole
3. Diastole

Question 8

Describe what happens in atrial systole

Answer 8

Atria contract and Ventricles relax

This increases the pressure of the blood, forcing it through the atrioventricular valves into the ventricles

Question 9

Describe what happens in ventricular systole

Answer 9

Ventricles contract

This increases pressure in the ventricles, forcing blood through the semilunar valves and out of the heart

Question 10

Describe what happens in diastole

Answer 10

Atria and ventricles relax
Semilunar valves close
Blood starts to fill up in the atria

Question 11

Which chamber are pacemaker cells located in

Answer 11

The right atrium