Cardiovascular System Acute Responses
What happens to your heart rate when you exercise?
Your heart rate increases when you exercise.
What is respiratory rate?
Respiratory rate is the number of times a person inhales and exhales per minute.
What happens to your muscle temperature during exercise?
How does your heart rate recovery rates adapt as a result of regular exercise?
Your heart rate recovery rates increase as a result of regular exercise, meaning your heart rate returns to your resting rate faster after exercise.
What is muscular hypertrophy?
Muscular hypertrophy is the increase of size of skeletal muscle fibres as a result of regular exercise.
What happens to your blood pressure when you're exercising?
Your blood pressure increases during exercise.
Tidal volume is how much air is inhaled or exhaled in a breath.
Where does most of your blood flow to during exercise?
Which chamber of your heart increases in size to accommodate for a larger blood volume per beat?
The left ventricle of your heart increases in size.
What chronic adaptations involve the respiratory system?
Tidal volume and ventilation both increase as a respiratory system adaptation.
What is this the formula for?
HR x SV
(Hint: HR = heart rate, SV = Stroke Volume)
This is the formula to calculate cardiac output.
How is ventilation calculated?
Ventilation is calculated using the formula TV x RR (Tidal Volume x Respiratory Rate)
What is oxygen used for in the muscular system?
Oxygen is used to help produce energy in the muscular system.
Your heart rate decreases as a result of regular training over an extended period.
What is myoglobin?
Myoglobin is an oxygen-binding protein in muscle cells that stores and delivers oxygen to support muscle activity.
Where does your blood flow to when you're exercising?
Your blood changes where it flows to your working muscles during exercise.
What is the movement of air in and out of the lungs called?
The movement of air in and out of the lungs is ventilation.
What is broken down to produce ATP during exercise?
The energy stored in the muscles is broken down to produce ATP (adenosine triphosphate) during exercise.
Is increased blood volume a chronic adaptation?
Yes, increased blood volume is a chronic adaptation.
What happens to the mitochondria as a result of regular exercise?
As a result of regular exercise, your body produces more mitochondria.
What is Kenny's cardiac output if his heart rate is 75bpm and his stroke volume is 80mL?
6000mL (6 litres)
What are all four acute responses of the respiratory system?
Tidal volume, respiratory rate, ventilation and oxygen uptake are the four acute responses of the respiratory system.
What is vasolidation?
Vasodilation is the widening of blood vessels to increase blood flow to working muscles.
Why does your resting heart rate decrease as a result of regular exercise?
Your resting heart rate decreases as a result of regular exercise because it has become stronger, meaning it is more efficient and requires less work to pump enough blood to your body.
What are the two main respiratory muscles/muscle types?
The two main respiratory muscles/muscle types are the diaphragm and the intercostal muscles.