Quiz 6

Question 1

Function of lung residual volume

Answer 1

To keep the alveoli open even after max expiration

Question 2

When fully saturated with oxygen, hemoglobin can bind [a] mL oxygen per gram

Answer 2

1.34ml

Question 3

In the fetus, the hole connecting the right to left atrium is called the [a] (two words; lower case), and the hole connecting the aorta and pulmonary veins is called the [b] (two words; lower case).

Answer 3

foramen ovale

Ductus arteriosis

Question 4

The ratio of packed cell volume to total volume of blood is referred to as the ………

Answer 4

hematocrit

Question 5

What device measures the oxy-hemoglobin saturation (SaO2; %)?

Answer 5

puilse oximeter

Question 6

Define SA node

Answer 6

the origin of the cardiac action potential - known as the pacemaker of the heart

Question 7

Define AV node

Answer 7

AV node is a part of the electrical conduction system of the heart that coordinates the top of the heart. It electrically connects the atria and ventricles.

Question 8

Define end diastolic volume (EDV)

Answer 8

End-diastolic volume is the amount of blood that is in the ventricles before the heart contracts.

Question 9

Define diastolic blood pressure

Answer 9

the arterial blood pressure immediately prior to the next ventricular systole.

Question 10

Define stroke volume

Answer 10

The amount of blood pumped by the left ventricle of the heart in one contraction.

Question 11

Define p-wave

Answer 11

Atrial depolarisation

Question 12

Arteries have valves to assist in the propulsion of blood during systole. True or false

Answer 12

True

Question 13

Blood flow velocity would be slowest through which type of blood vessel?

Answer 13

Capillaries

Question 14

What is the phospholipid molecule that lines the inner surface of the alveoli?

Answer 14

Surfactant