Cardiovascular system-lecture 18

Question 1

Oxygen Uptake

Aerobic metabolic system

Answer 1

Uptake-respiratory function

Transport/delivery-cardiovascular function

Utzilize-Muscule function (sketal muscle function)

Question 2

Oxygen uptake(Vo2)

Answer 2

Oxygen uptake=Cardiac output(CO x arteriovenous oxygen difference(a-vo2 diff)

cardiac output=volume of blood pumped by the heart per minute

arteriovenous oxyegn diff=the difference in oxygen content of the blood between the arterial blood and venous blood

Question 3

maximal oxyegn uptake(Vo2 max)

Answer 3

Oxygen uptake= max Cardiac output(CO x max arteriovenous oxygen difference(a-vo2 diff)

cardiac output=the maximal volume of blood pumped by the heart per minute

,ax arteriovenous oxyegn diff=the difference in oxygen content of the blood between the arterial blood and venous blood

Question 4

Systemic circulation

Answer 4

High pressure

Located between left ventricle and right atrium (aorta and vena cava).

Pushes blood around the whole body(to every organ).

Transports oxygenated blood to each organ of the body.

Returns deoxygenated blood to the Right heart.

Question 5

Pulmonary

Answer 5

Low pressure system.

Located between right ventricle and left atrium

Pushes blood to one organ-the lungs (100% of blood).

Transports deoxygenated blood to the lungs.

Return oxygenated blood to the left heart.

Question 6

whats unique about the myocardial?

Answer 6

There are no more units in the myocardial.

Question 7

Should be able to explain this slide.

Pulmonary vs systemic circulation

Answer 7

Question 8

What is systemic vasuclar beds?

Answer 8

Bloods gets to where it needs to get to.

If you just ate it goes to digestive system and so on.

Question 9

What happens to muscle fibres when heart beats?

What is syncytium?

Answer 9

Every muscle fibre beats as all joint together.

Syncytium is where RA and left atrium LA contract at same time-electrical network

Two upper chambers contract at same time and lower rest and reverse.