Youth Fitness Week 2 Exam Questions
and Answers (Latest Update 2026)
Terminal air sacs in the lungs surrounded by capillaries where gas
exchange occurs: -
correct answer ✅alveoli
Spontaneous migration of substances from regions where their
concentration is high to regions where their concentration is low: -
correct answer ✅diffusion
Shortness of breath or distressed breathing: -
correct answer ✅dyspnea
Blood vessels that supply oxygenated blood to the tissues: -
correct answer ✅arteries
Young children may have maximum heart rates as high as 220
beats-per-minute or more -
correct answer ✅True
Children tend to have a larger stroke volume than adults. -
correct answer ✅False
, Youth Fitness Week 2 Exam Questions
and Answers (Latest Update 2026)
Which is true about pulmonary function during exercise in
children? -
correct answer ✅Children have a higher breathing frequency and
lower tidal volume than adults
Oxygen consumption increases in proportion to exercise intensity
until it plateaus near maximal effort. -
correct answer ✅True
Arteriovenous oxygen difference measures oxygen extraction by the
tissues from blood. -
correct answer ✅true
During exercise, diastolic pressure increases substantially in
children. -
correct answer ✅false
Composed of a single motor nerve and a group of muscle fibers it
supplies: -
correct answer ✅motor unit
and Answers (Latest Update 2026)
Terminal air sacs in the lungs surrounded by capillaries where gas
exchange occurs: -
correct answer ✅alveoli
Spontaneous migration of substances from regions where their
concentration is high to regions where their concentration is low: -
correct answer ✅diffusion
Shortness of breath or distressed breathing: -
correct answer ✅dyspnea
Blood vessels that supply oxygenated blood to the tissues: -
correct answer ✅arteries
Young children may have maximum heart rates as high as 220
beats-per-minute or more -
correct answer ✅True
Children tend to have a larger stroke volume than adults. -
correct answer ✅False
, Youth Fitness Week 2 Exam Questions
and Answers (Latest Update 2026)
Which is true about pulmonary function during exercise in
children? -
correct answer ✅Children have a higher breathing frequency and
lower tidal volume than adults
Oxygen consumption increases in proportion to exercise intensity
until it plateaus near maximal effort. -
correct answer ✅True
Arteriovenous oxygen difference measures oxygen extraction by the
tissues from blood. -
correct answer ✅true
During exercise, diastolic pressure increases substantially in
children. -
correct answer ✅false
Composed of a single motor nerve and a group of muscle fibers it
supplies: -
correct answer ✅motor unit
