Mass Transport in Animals: Circulatory Systems & Tissue Fluid - exam practice

aortic pressure increases

atrioventricular valves open

semilunar valves close

ventricular pressure decreases

all semilunar valves open

the atrioventricular valves open

the pressure in the atria rises above the pressure in the ventricles

the pressure in the left atrium rises more than the pressure in the right atrium

1, 2, and 3

1 and 2 only

1 and 3 only

2 and 3 only

1 and 2

2 and 3

1 and 3

1, 2, and 3

blood flows into the aorta through the semilunar valve due to contraction of the right ventricle

blood flows into the left atrium through the pulmonary artery when the wall of the left atrium relaxes

blood flows into the right atrium through the vena cava when the wall of the right atrium relaxes

blood flows into the right ventricle through the semilunar valve due to contraction of the right atrium

blood flows twice through the heart in one complete cardiac cycle

blood flows twice through the heart in one complete circuit of the body

blood remains within arteries, capillaries and veins

blood transports both oxygen and carbon dioxide

1, 4, and 5

1, 2, 3, and 4

1 and 2 only

2 and 3 only

blood plasma contains more protein than tissue fluid

both blood plasma and tissue fluid contain red blood cells

tissue fluid contains white blood cells whereas blood plasma does not

tissue fluid is formed from blood plasma and is not returned to blood plasma

to transport blood under high pressure

to return blood to the heart

to exchange metabolic substances such as oxygen and carbon dioxide

to regulate body temperature

pulmonary veins

coronary arteries

pulmonary arteries

aorta

it allows deoxygenated blood to flow into the right atrium

it prevents backflow of blood into the left atrium during ventricular diastole

it regulates the flow of blood from the right ventricle to the pulmonary artery

it prevents backflow of blood into the left atrium during ventricular systole