The Circulatory System

Question 1

What are the 4 main functions of the circulatory system?

Answer 1

Distribution of molecules (mainly gases) for nutrition, growth and repair
Chemical signalling
Thermoregulation
Mediate inflammation and host defence responses

Question 2

What 2 sub-systems make up the circulatory system?

Answer 2

Cardiovascular and lymphatic

Question 3

What are the 3 main components of the circulatory system?

Answer 3

Arterial system (arteries carry blood away from the heart), the heart and the venous system (carry blood towards the heart)

Question 4

What are the 2 circulations involved in the CV system?

Answer 4

Pulmonary and systemic

Question 5

What is the blood flow in the pulmonary system?

Answer 5

From right side of the heart to the lungs to the left side

Question 6

What is the blood flow in the systemic system?

Answer 6

From left side of the heart, to capillary beds of organs and tissues (systems) back to the right side

Question 7

How does the muscular double pump action of the heat work?

Answer 7

Systole (contraction) and then diastole (relaxation) 
Remember di(astole) contraction dies

Question 8

What is the average pulse rate?

Answer 8

70 bpm