The Heart-Structure

Question 1

How many muscular pumps does the heart have?

Answer 1

2

Question 2

What does the RHS pump do?

Answer 2

Pumps deoxygenated blood to lungs

Question 3

What circuit does the RHS pump do?

Answer 3

Pulmonary circuit

Question 4

What does the LHS pump do?

Answer 4

Pumps oxygenated blood to body

Question 5

What circuit does the LHS pump do?

Answer 5

Systematic circuit

Question 6

Which walls are thicker? Atria or Ventricles

Answer 6

Ventricles

Question 7

Which ventricle has the thicker wall? And by how much?

Answer 7

Left ventricle by 2-3 times

Question 8

Why is the left ventricle thicker?

Answer 8

In order to create more pressure

Question 9

What are the 2 types of valve in the heart?

Answer 9

-Atrioventricular (AV)
-Semi-lunar (SL)

Question 10

What are the valves supported by?

Answer 10

Chords called valve tendons

Question 11

What do the valves ensure?

Answer 11

Unidirectional blood flow through the heart because they only open one way

Question 12

What type of pressure and where forces the valve to open?

Answer 12

Higher pressure behind a valve forces it to open

Question 13

What type of pressure and where forces the valve to close?

Answer 13

Higher pressure in front of a valve forces it to close.

Question 14

What is the main purpose of the heart?

Answer 14

Maintaining Pressure
Transportation

Question 15

How many times does your heart beat a day?

Answer 15

Around 100,000

Question 16

What is the name of the double layered sac in which the heart is contained in?

Answer 16

Pericardium

Question 17

What wall separates the right and left side of the heart?

Answer 17

Septum

Question 18

How many pulmonary veins are there?

Answer 18

4 main ones