Cardiovascular System

Question 1

What is the function of the heart?

Answer 1

Circulate oxygen, nutrients, hormones, heat and waste products….
Regulate pH, body temp & water content of cells.
Protects against blood loss (clotting) & foreign bodies.

Question 2

Define: pericardium

Answer 2

Double layered serous membrane, protects and lubricates.

Question 3

Define: myocardium

Answer 3

Thickest layer of heart tissue

Question 4

Define: endocardium

Answer 4

Inner lining between myocardium and chambers of the heart

Question 5

Right side of heart receives?

Answer 5

Deoxygenated blood

Question 6

Left side of the heart receives?

Answer 6

Oxygenated blood

Question 7

What separates the two halves of the heart?

Answer 7

The septum

Question 8

What supplies the heart muscles with blood?

Answer 8

Coronary vessels

Question 9

Define: systole

Answer 9

Heart contracts

Question 10

Define: diastole

Answer 10

Heart relaxes & refills with blood

Question 11

Define: cardiac output

Answer 11

Amount of blood that leaves the heart

Question 12

Define: shock

Answer 12

Adaptation to an extreme cardiovascular insult (sudden blood loss (hypovolaemia)).

Question 13

If there is a lack of circulating volume how does the body respond?

Answer 13

A huge increase in both stroke volume (contractility) and heart rate

Question 14

What device measures electrical conduction in the heart?

Answer 14

Electrocardiogram (ECG)

Question 15

What is the largest artery in the body?

Answer 15

Aorta

Question 16

Define: subclavian arteries

Answer 16

Branch off the aorta and travel toward the thoracic limb

Question 17

Define: carotid arteries

Answer 17

Branch off one or both subclavian arteries and supply the head

Question 18

Define: vasoconstriction

Answer 18

Vessel constriction

Question 19

Define: vasodilation

Answer 19

Vessel dilation