Cardiovascular System

Question 1

How does the heart get blood?

Answer 1

THROUGH THE SYSTEMIC CIRCULATION, VIA THE CORONARY ARTERIES

Question 2

What are Large Arteries sometimes known as and why?

Answer 2

Large arteries are sometimes known as ELASTIC ARTERIES because THEY CONTAIN ELASTIN WHICH ALLOWS THEM TO STRETCH, LIKE A BALLOON OR ELASTIC BAND.

Question 3

The arterial side of the blood flow?

Answer 3

The arterial side of the blood flow is a HIGH pressure system, because IT RECEIVES THE HIGH PRESSURE OF BLOOD BEING PUMPED FROM THE HEART.

Question 4

What structure do veins have that arteries do not, that prevents backflow of blood (allows for blood to only flow in one direction)?

Answer 4

VALVES

Question 5

Name the valves of the heart?

Answer 5

TRICUSPID, PULMONIC, MITRAL, AORTIC

Question 6

All heart valves are one way valves. Why is this important?

Answer 6

YOU DO NOT WANT BLOOD GOING THE WRONG DIRECTION, ONE DIRECTION ONLY, FORWARD

Question 7

What caused the Lub Dub (Dup) sound that a heart makes?

Answer 7

THE CLOSING OF THE HEART VALVES

Question 8

What causes the first heart sound, Lub?

Answer 8

THE CLOSING OF THE ATRIOVENTRICULAR VALVES (TRICUSPID AND MITRAL/BICUSPID)

Question 9

What causes the second heart sound, Dub?

Answer 9

THE CLOSING OF THE SEMILUNAR (PULMONARY AND AORTIC) VALVES

Question 10

Systole? Diastole?

Answer 10

Systole - CONTRACTION THE HEART
Diastole - RELAXATION OF THE HEART