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WorksheetsCardiovascular System (Thermoregulation, Acute responses to PA)
Total questions: 15
Worksheet time: 13mins
Identify the term for the following definition: The maintenance of body temperature and the heat exchange that occurs between the body and the environment
Thermoregulation
Homeostasis
Hypothemia
Acute responses
What is the range of our body's normal core temperature in degrees celsius?
35-37
36.5-37.5
34.5-37.5
35-36
The maintenance of a constant internal environment for the optimal functioning of the body and its systems is...
Hypothalamus
Thermoregulation
Hyperthemia
Homeostasis
Which of the following is not a heat conversion response to Hypothermia
Vasoconstriction
Shivering
Vasodialation
Body hair raised
Which best describes hyperthermia?
The rise in the body's core temperature
The constant internal environment for optimal body functioning
The reduction of the body's core temperature
An infection that often shows flu-like symptoms
Vasodilation is...
When the blood vessels contrict
When a blood vessel shortens in length
The decrease of blood flow to the tissues
The widening of the blood vessels
Which best defines heart rate?
The rate in which the blood travels through the heart
The amount of blood the heart pumps per minute
The number of times the heart contracts or beats per minute
The number of times the heart contracts or beats per second
When we exercise, cardiac output increases due to the increase in both...
Stroke volume and steady state
Heart rate and stroke volume
The amount of blood being pumped from the heart
Blood volume and blood flow redistribution
Which of the following best describes the changes in blood flow that occur as a result of physical activity
Speed of blood flow increases. Blood flow is redistributed to working muscles and away from areas of the body that are less needed.
Speed of blood flow is slowed down, and the working muscles begin to feel fatigued
Blood flow is redistributed to the areas in the body that aren't heavily required during exercise
Speed of blood flow is increased due to a decrease in heart rate and stroke volume
Systolic blood pressure...
Decreases when we participate in physical activity
Causes the diastolic blood pressure to significantly increase when exercising
Increases when we participate in physical activity
Which of the following causes an increase in systolic blood pressure during exercise?
An increase in a-VO2 diff.
A decrease in diastolic blood pressure
An increase in the force of blood being pumped to the arteries
The vasodilation of the arteries to allow for more blood flow
Which of the following decreases during physical activity...
Stroke volume
Blood vessel diameter
Blood volume
Arteriovenous oxygen difference
Explain the role that stroke volume plays in ensuring oxygen delivery to the working muscles during exercise
Explain why arteriovenous oxygen difference (a-VO2 diff.) increases during exercise:
Which of the following does not affect our blood volume levels during exercise?
The hydration level of the individual
The temperature/ humidity of the environment
Intensity/duration of the exercise
The diameter of the blood vessels during exercise
