Volume of oxygen in the arteries. Increases.

Difference in the level of oxygen in the veins during exercise and at rest. Increases.

Measure of the difference in the concentration of oxygen in the arterial blood compared to the concentration of oxygen in the venous blood. Increases.

Measure of the difference in the concentration of oxygen in the arterial blood compared to the concentration of oxygen in the venous blood. Decreases.

A increase in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.

A increase in the diameter of a blood vessel, resulting in a increase in blood flow to the area supplied by the blood vessel.

A decrease in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.

A decrease in the diameter of a blood vessel, resulting in no change in blood flow to the area supplied by the blood vessel.

An increase in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.

An increase in the diameter of a blood vessel, resulting in a increase in blood flow to the area supplied by the blood vessel.

A decrease in the diameter of a blood vessel, resulting in a decrease in blood flow to the area supplied by the blood vessel.

A decrease in the diameter of a blood vessel, resulting in no change in blood flow to the area supplied by the blood vessel.

How much air is inspired or expired in one breath. Decreases.

How much air is breathed in or out in one minute. Decreases.

The number of breaths taken in one minute. Increases.

The volume of oxygen that can be taken up and used by the body for energy production. Increases.

How much air is inspired or expired in one breath. Increases.

How much air is breathed in or out in one minute. Increases.

The number of breaths taken in one minute. Increases.

The volume of oxygen that can be taken up and used by the body for energy production. Increases.

How much air is inspired or expired in one breath. Increases.

How much air is breathed in or out in one minute. Increases.

The number of breaths taken in one minute. Increases.

The volume of oxygen that can be taken up and used by the body for energy production. Increases.

How much air is inspired or expired in one breath. Increases.

The number of breaths taken in one minute. Increases.

The volume of oxygen that can be taken up and used by the body for energy production. Increases.

The movement of molecules from an area of higher pressure to one of lower concentration. Increases.

How much air is inspired or expired in one breath. Stays the same.

During aerobic exercise, blood volume decreases. Plasma volume decreases rapidly in the first 5 minutes of exercise then stabilises.

The number of breaths taken in one minute. Increases.

The volume of oxygen that can be taken up and used by the body for energy production. Increases.

The maximum amount of oxygen per minute that can be transported to, taken up by and used by the body for energy production.

Can be measured as an absolute amount per minute.

Can be measured as a relative amount per minute per body weight.

Is a good predictor of anaerobic fitness.

Body size: a larger person needs more oxygen.

Gender: Males tend to have higher oxygen uptake levels.

Genetics:

Age: Tends to decrease after early adulthood

Training status: Aerobic training can increase oxygen uptake values.

Is low at rest.

Can't always meet demands so you can get an oxygen deficit.

Will level off when demand is met. This is called steady state.

Will remain elevated (Excess post exercise consumption EPOC) after exercise to get the body back to homeostasis. eg temperature back to normal.

Increased motor unit and muscle fibre recruitment.

Increased blood flow to the muscles (not a trick answer!)

Increased arteriovenous oxygen difference (both!)

Increased muscle enzyme activity and oxygen supply and use.

Decreased muscle substrate levels eg CP