Cardiac Cycle + Transport systems

Question 1

Features of transport systems

Answer 1

A medium to carry material (blood)
A form of mass transport to move medium in bulk (heart)
A closed system of vessels to transport medium (blood vessels)
A mechanism to move the medium in vessels (valves + elastic arterial walls)

Question 2

Which arteries and veins go to and from the kidneys

Answer 2

Renal vein/artery

Question 3

Which artery and veins goes to and from the liver

Answer 3

Hepatic artery + vein
Hepatic portal vein (stomach and intestines)

Question 4

Cardiac diastole

Answer 4

Atria relaxed and fills with blood
Atrioventricular valves open
Ventricles relaxed, lower pressure and fills
Arterial pressure high
Semi - lunar valves close to prevent back flow

Question 5

Atrial Systole

Answer 5

Atria contract - High pressure
Ventricles relax, low pressure
Atrioventricular valves open
Blood flows from atria to ventricles

Question 6

Ventricular Systole

Answer 6

Ventricles contract - High pressure
Atria relax - lower pressure
Atrioventricular valves close to prevent back flow
Semi lunar valves open
Blood flows from ventricles to arteries

Question 7

What valves allow passage of blood from atrium to ventricles?

Answer 7

Atrioventricular valves

Question 8

What valves allow passage of blood from ventricles out of the heart?

Answer 8

Semi lunar

Question 9

What is meant by closed double circulatory system?

Answer 9

Blood is confined to vessels and passes twice through the heart