Cardiorespiratory Systems Test- AOS1 O2 Supplementary Task

What two factors make up ventilation?

• Stroke volume x respiratory rate

• Tidal volume x respiratory rate

• Stroke volume x heart rate

• Tidal volume x heart rate

Cardiac Output is

• A measure of how much blood is squeezed out of the aorta

• When blood is being transported back to the pulmonary veins

• The volume of blood pumped out of the heart per minute

• The number of heart beats per minute

The a-VO2 diff is a measure of:

• How much oxygen is leaving the heart via the pulmonary circuit

• The difference in oxygen concentration between the systemic and pulmonary circuits

• How much oxygen is leaving the heart via the systemic circuit

• The difference in oxygen concentration between the arteries and veins after passing through muscles

During expiration, the

• intercostal muscles and diaphragm relax

• intercostal muscles and diaphragm contract

• diaphragm contracts and the intercostal muscles relax

• intercostal muscles contract and the diaphragm relaxes

There are two types of cholesterol in foods. Which of the following is considered the 'good' cholesterol?

• Low-density Lipoproteins (LDLs)

• Saturated Fats

• High-density Lipoproteins (HDLs)

• Polyunsaturated fats

Which of the following statements is CORRECT?

• Vasodilation results in less blood being transported to a particular body location

• Gases move according to concentration gradients from areas of high to low concentration

• Veins carry blood from the heart to the rest of the body via the systemic circuit.

• Stroke volume increases linearly with exercise intensity until approximately 220-age.

Match the following components of the blood with the correct function.

• Transports blood cells and nutrients.

• Platelets

• Fights infection

• White Blood Cells

• Transports oxygen around the body

• Red Blood Cells

• Helps form blood clots

• Plasma

During exercise, which of the following processes occur?

• Blood vessels going to the muscles vasodilate to increase the amount of oxygen and nutrients available for energy.

• Blood vessels vasodilate to increase overall blood flow around the body.

• Blood vessels going to the non-essential organs such as the intestines vasoconstrict to allow blood flow to be redirected to working muscles

• Blood vessels to the muscles vasoconstrict to push waste products out of the body.

• A and C are correct

Cardiac Output =

• Stroke volume x respiratory rate

• Tidal volume x respiratory rate

• Stroke volume x heart rate

• Tidal volume x heart rate

The term used to define when the body's core temperature is too high is

• Hypothermia

• Hyperthermia

• Overheated

• Thermoregulation