the heart

Question 1

blood vessels

Answer 1

• artery
• capillary
• vein

Question 2

artery

Answer 2

takes blood away from the heart

Question 3

vein

Answer 3

takes blood to the heart

Question 4

pulmonary circulation

Answer 4

heart → lung → heart

Question 5

systemic circulation

Answer 5

heart → rest of body → heart

Question 6

receiving chambers of the heart

Answer 6

atria

Question 7

ejecting chambers of the heart

Answer 7

ventricles

Question 8

left atrium

Answer 8

• recieves oxygenated blood from the lungs via pulmonary veins
• blood is pumped into the left ventricle via bicuspid valve

Question 9

bicuspid valve

Answer 9

mitral valve / left atrioventricular valve / AV valve

Question 10

left ventricle

Answer 10

• its walls are three times the thickness of the right ventricle’s
• bicuspid valve closes and blood collects in the ventricle
• the heart muscle’s contractions force blood through the aortic semilunar valve into the aorta

Question 11

right atrium

Answer 11

• larger than the left atrium, but has thinner walls
• two major veins that return blood to the heart from all over the body
• superior vena cava → returns deoxygenated blood from the upper body
• inferior vena cava → returns deoxygenated blood from the lower body
• pumped into the right ventricle via the tricuspid valve (right AV valve)