Map the blood flow through mammalian circulatory system

Question 1

systemic circulation

Answer 1

Blood leaves from the left side of the heart and gets brought to all over the body.
Since blood is leaving from here to go to the rest of the body, the aorta, arterioles have a higher pressure than the venules and veins.

Question 2

Pulmonary circulation

Answer 2

Right side of the heart pumps to the pulmonary circulation.

Question 3

Artery

Answer 3

has a large number of smooth muscles, creates a lot of pressure and has thicker wall. Blood pressure regulation takes place here.

Question 4

Veins

Answer 4

Have valves to prevent the back flow of blood.

Question 5

do all arteries have oxygenated blood?

Answer 5

No, pulmonary arteries carry deoxygenated blood away from the heart.

Question 6

Right ventricles pump____ blood into the ____circulation.

Answer 6

deoxygenated, pulmonary.

Question 7

Which is the higher-pressure system?

Answer 7

Systematic circulation

Question 8

Why is there more pressure needed to drive blood through the body than the lungs?

Answer 8

Because of the larger length of vessels in systematic circulation system, this is a great length travelling to the whole body reducing the ease of flow compared to the pulmonary system. This reduction in the ease of the flow, is then balanced out with the higher pressure.

Question 9

How is the rate of blood flow equal in both pulmonary and systemic circulation?

Answer 9

There is an increase driving force in the left side of the heart, so it needs to generate more pressure than the right side which balances out reduced ease of flow taking place form the increased length factor.