Cardiovascular system

Question 0

What is the function of the heart?

Answer 0

Pump blood

Question 1

What makes up the cardiovascular system?

Answer 1

• Heart
• Blood vessels
• Blood

Question 2

What is the function of blood vessels?

Answer 2

Carry blood to/from tissue cells throughout the body

Question 3

Where is the heart located?

Answer 3

Within the mediastinum, left of the midline

Question 4

What covers the heart?

Answer 4

Pericardium
-Fibrous pericardium (outer layer)
-Serous pericardium (inner double-layered part)
      •visceral pericardium ("epicardium")
       •parietal pericardium 
-Pericardial cavity
-"Pericarditis"
-"Pericardial Effusion"

Question 5

What is the pericardium?

Answer 5

Sac enclosing (protecting) the heart.

Question 6

What are the layers of the heart wall?

Answer 6

1) Epicardium
2) myocardium
3) endocardium

Question 7

How many layers does the heart wall have?

Answer 7

3

Question 8

What is the Epicardium and what is its function?

Answer 8

• outermost layer of the heart wall
• visceral layer of serous pericardium
• protection

Question 9

What is the myocardium and what is its function?

Answer 9

• middle layer of the heart wall
• largest layer of the heart wall
• cardiac muscle
• pumping action

Question 10

What is the largest layer of the Heart Wall?

Answer 10

Myocardium

Question 11

How many chambers does the heart have?

Answer 11

4

Question 12

Name the 4 chambers of the heart.

Answer 12

Left and right atria

left and right ventricles

Question 13

What are Sulci?

Answer 13

Grooves

Question 14

What is the function of the Right Atrium?

Answer 14

• Receives deoxygenated blood from 3 veins.
• Superior vena cava.
• Inferior vena cava.
• Coronary sinus.
• Blood passes from RA to Right Ventricle

Question 15

What is the function of the Right Ventricle?

Answer 15

Pumps blood to the Pulmonary Circuit via the Pulmonary Trunku.
-Pulmonary trunk to the Right and Left pulmonary arteries

Question 16

What is the function of the left atrium?

Answer 16

-Receives oxygenated blood from 4 veins.
-Right and left pulmonary veins.
-Blood passes from LA to left ventricle.
(It is well oxygenated because it just came back from the lungs)

Question 17

What is the function of the left ventricle?

Answer 17

-Pumps blood to the “systematic circuit”
via the Aorta (the largest artery in the body)
(Blood going everywhere except the lungs)

Question 18

What are the functions of the heart valves?

Answer 18

• Prevent backflow of blood.

- Open/close in response to pressure changes.