Cardiac output

Biology 1020 – human health

Answer Asap

Cardiac output is an important value in human health and exercise physiology. Cardiac output (Q) is a product of which variables? CHECK ALL THAT APPLY:
Select one or more:

Mean arterial pressure (MAP)
Stroke volume (SV)
Respiration rate

Heart rate (HR)

The terminal ends of the bronchioles contain numerous small sacs where gas exchange occurs. These sites of gas exchange between the lungs and the blood are called?

a.

Trachea

b.

Alveoli

c.

Aorta

d.

Bronchioles

The definition shown below refers to which exercise physiology term?

“It is a measure of our aerobic capacity, and is determined by maximal oxygen delivery to tissues and extraction of oxygen from the blood to the working muscles”

a.

Cardiac output (Q)

b.

Maximal carbon dioxide consumption (VCO2max)

c.

Arteriovenous oxygen difference (a-vO2diff)

d.

Maximal oxygen consumption (VO2max)

Our respiratory system has multiple primary functions. Of those listed below, CHECK ALL THAT APPLY as primary functions of the human respiratory system.

Select one or more:

Production of hormones

Regulation of body pH

Exchange of oxygen and carbon dioxide

Protection from pathogens and irritants

Vocalization

During exercise, as the intensity of the exercise increases our heart rate also increases. If we were performing aerobic exercise, our heart rate would increase in which manner?

a.

Logarithmic

b.

Exponential

c.

Linear

d.

It doesn’t – heart rate actually decreases with increasing exercise intensity