Chapter 11 – The Cardiovascular System - Major Valves of the Heart

Question 1

Where is the Tricuspid valve?

Answer 1

• between the right atrium and right ventricle

Question 2

Where is the Pulmonary valve?

Answer 2

• between the right ventricle and pulmonary artery

Question 3

Where is the Mitral valve?

Answer 3

• between the left atrium and left ventricle

Question 4

Where is the Aortic valve?

Answer 4

• between the left atrium and aorta

Question 5

How many cusps/flats does the Tricuspid valve got?

And what does this allows?

Answer 5

• It’s got 3 cusps/flats of the valves

- this allows the blood to flow into the lower chamber of the heart the Right ventricle

Question 6

Oxygen poor blood enters the heart through the WHAT in the body?

Answer 6

• two largest veins

Question 7

What are the two largest veins?

Answer 7

• Superior Venae Cavae

- Inferior Venae Cavae

Question 8

The Venae Cavae brings oxygen poor blood that has passed through the body to the next part of the heart the?

Answer 8

Right Atrium

Question 9

What is the Right Atrium?

What does it do?

Answer 9

• Upper right chamber of the heart.

- The right atrium contracts and pushes the blood through the Tricuspid valve

Question 10

What is the Tricuspid Valve?

Answer 10

• has 3 cusps/flats, this allows the blood to flow into the lower chamber of the heart, the Right ventricle

Question 11

What doe the Right Ventricle do?

Answer 11

once the blood enters the right ventricle, with the contraction of the heart, the oxygen poor blood pumps through, the Pulmonary valve into the Pulmonary artery

Question 12

What is Pulmonary Artery?

Answer 12

• Carries oxygen poor blood to the lungs into the lung capillaries, where the blood loses it carbon dioxide into the lung tissue, and then is exhaled through the lungs.
• At the same time oxygen enters into the capillaries of the lungs and is brought back to the heart via the Pulmonary veins

Question 13

From the Pulmonary Veins the newly oxygenated blood enters the…

Answer 13

Left atrium of the heart

Question 14

What is the Left Atrium?

Answer 14

Contracts to force the oxygenated blood through the Mitral valve (bicuspid, or 2 cuspid/flats) into the Left ventricle

Question 15

What is the Left Ventricle?

What does it do?

Answer 15

• Has the thickest walls of the four chambers because it has to pump the blood with great force, so that the blood travels through arteries to all parts of the body.
• The left ventricle propels the blood through the Aortic valve into the Aorta

Question 16

The Aorta then…

Answer 16

carries the oxygen rich blood to parts of the body