Cardiovascular System

Question 1

Where is the location of the heart?

Answer 1

Rests on the diaphragm and near the midline of the thoracic cavity

Question 2

It confines heart to the mediastinum

Answer 2

Pericardium

Question 3

It allows sufficient freedom of movement of heart

Answer 3

Pericardium

Question 4

What are the 2 parts of pericardium.

Answer 4

The Fibrous and Serous

Question 5

It anchors anchors heart to mediastinum.

Answer 5

Fibrous layer

Question 6

Imparts a slippery texture to the outer surface of the heart.

Answer 6

Epicardium

Question 7

Responsible for pumping

Answer 7

Myocardium

Question 8

Thin layer of Endothelium which is continuous with the lining of the large blood vessels attached to the heart.

Answer 8

Endocardium

Question 9

What do you call the series of grooves which contain fat and coronary blood vessel in the heart?

Answer 9

Sulci

Question 10

How many auricles are present in the heart?

Answer 10

2

Question 11

Which is thicker atria or ventricle?

Answer 11

Ventricles

Question 12

Which is thicker left or right ventricle?

Answer 12

Left

Question 13

This side is the pump to the systemic circulation?

Answer 13

Left

Question 14

This side is the pump to the pulmonary circulation.

Answer 14

Right

Question 15

What are the 2 important functions of the cardiac muscle?

Answer 15

• Act as a pace maker
• Form the conduction system

Question 16

SA node would initiate action potential about every ____ seconds or _____ times/min

Answer 16

0.6; 100

Question 17

The _____ alters the strength and timing of heart beats.

Answer 17

ANS

Question 18

What are the different characteristics of the conduction cells?

Answer 18

• Automaticity
• Excitability
• Conductivity
• Rhythmicity
• Contractility
• Tonicity