What is the normal range of values for cardiac output in a 20-year-old untrained female at rest?

• 45-55 liters/min

• 20-25 Liters/min

• 5-10 Liters/min

• 3-5 L/min

A-V O2 difference does not change with an increase in exercise intensity.

• True

• False

Shear stress from blood flow on which body tissue results in nitric oxide production?

• Endothelial Tissue

• Muscle Tissue

• Nervous Tissue

• Connective Tissue

The Intrinsic pathway begins at which location?

• SA Node

• AV Node

• Bundle of His

• Purkinje Fibers

Exercise ____ blood flow to the kidneys, resulting in erythropoietin production

• Increases

• Decreases

Tags

NGSS.HS-LS1-3

Which of the following items contributes to Vascular Resistance?

• Cardiac output

• Humoral factors

• Heart rate

• Stroke volume

Tags

NGSS.HS-LS1-3

With exercise, would you expect the duration of the QRS to significantly change?

• Yes, it would get significantly longer

• Yes, it would get significantly shorter

• No, it would have no significant change

• What is a QRS complex?

Heat transfer by conduction utilizes

• Direct molecule to molecule contact

• Movement of wind/air molecules across the skin

• Electromagnetic waves

• Vaporizing of water

Tags

NGSS.HS-PS3-4

The primary adaptation to the CV system with chronic exercise participation is:

• Heart Rate

• Stroke Volume

• A-V O2 difference

• None of these

Heat Stroke is the most severe heat-related illness when exercising in hot environments.

• True

• False