Canfitpro Exam 3 2025/2026 GRADE A CORRECT
ANSWERS
How many litres of blood at rest is pumped thru the average adults heart? - 5
What is blood pressure - the result of blood being pumped out the ventricles exerting force against
the arterial walls.
What is an average BP? - 120/80
What is the top number of BP and what is it? - systolic, it is the pressure exerted on the walls of the
arteries as the heart contracts representing peak pressure in the system
What is the bottom number of BP and what is it? - diastolic pressure, and its the pressure exerted on
the walls of the arteries as the heart relaxes and fills again, representing the lowest pressure in the
arteries.
Does resting BP remain constant as a client becomes more fit? - yes
During moderate exercise what happens to BP? - systolic pressure rises to values above 200mgHg
and then levels off, whereas diastolic remains relatively stable due to the opening of more capillary
beds
What does the heart pump approx. at rest? - 72bpm
What is stroke volume? - the amount of blood that the left ventricle ejects in one beat
What is the average stroke volume for the typical male? - around 70 mL
Does stroke volume increase as a client gets fitter? how so or why not? - Yes, the ventricles become
larger allowing them to hold more blood and contract with more force, causing the SV to increase
What is cardiac output? - the amount of blood that the heart ejects in 1 minute. It is the product of
HR and stroke volume
, What is the equation to solve for cardiac output (Q) - Q=SVxHR
What is ventilation? - refers to the mechanical process of moving air in and out of the lungs
What is diffusion? - the way gases are exchanged in the lungs
What does the respiratory system consist of? (8) - mouth, nose, nasal cavity, pharynx, larynx, trachea,
bronchial tree and lungs
What are at the ends of the tertiary bronchi? - bronchioles
What do bronchioles contain? - tiny air sacs called alveoli
how does oxygen get to the blood from the alveoli? - via diffusion
What is the lung volume of an average adult? - 4-6 L of mixed air
What does mixed air contain? - 89% N
21% O2
.4% CO2
Whats the good thing about alveoli and having 300 million of them? - they provide lots of surface
area for gas exchange
What is inspiration? - the process of air moving into the lungs and occurs once lung pressure is below
atmospheric pressure
What is expiration? - passive process of air moving out the lungs, occurring when lungs pressure
exceeds atmospheric pressure
ANSWERS
How many litres of blood at rest is pumped thru the average adults heart? - 5
What is blood pressure - the result of blood being pumped out the ventricles exerting force against
the arterial walls.
What is an average BP? - 120/80
What is the top number of BP and what is it? - systolic, it is the pressure exerted on the walls of the
arteries as the heart contracts representing peak pressure in the system
What is the bottom number of BP and what is it? - diastolic pressure, and its the pressure exerted on
the walls of the arteries as the heart relaxes and fills again, representing the lowest pressure in the
arteries.
Does resting BP remain constant as a client becomes more fit? - yes
During moderate exercise what happens to BP? - systolic pressure rises to values above 200mgHg
and then levels off, whereas diastolic remains relatively stable due to the opening of more capillary
beds
What does the heart pump approx. at rest? - 72bpm
What is stroke volume? - the amount of blood that the left ventricle ejects in one beat
What is the average stroke volume for the typical male? - around 70 mL
Does stroke volume increase as a client gets fitter? how so or why not? - Yes, the ventricles become
larger allowing them to hold more blood and contract with more force, causing the SV to increase
What is cardiac output? - the amount of blood that the heart ejects in 1 minute. It is the product of
HR and stroke volume
, What is the equation to solve for cardiac output (Q) - Q=SVxHR
What is ventilation? - refers to the mechanical process of moving air in and out of the lungs
What is diffusion? - the way gases are exchanged in the lungs
What does the respiratory system consist of? (8) - mouth, nose, nasal cavity, pharynx, larynx, trachea,
bronchial tree and lungs
What are at the ends of the tertiary bronchi? - bronchioles
What do bronchioles contain? - tiny air sacs called alveoli
how does oxygen get to the blood from the alveoli? - via diffusion
What is the lung volume of an average adult? - 4-6 L of mixed air
What does mixed air contain? - 89% N
21% O2
.4% CO2
Whats the good thing about alveoli and having 300 million of them? - they provide lots of surface
area for gas exchange
What is inspiration? - the process of air moving into the lungs and occurs once lung pressure is below
atmospheric pressure
What is expiration? - passive process of air moving out the lungs, occurring when lungs pressure
exceeds atmospheric pressure
