Adaptations to the Cardiorespiratory System Flashcards
What is Tidal Volume, how is this affected, and why is this beneficial?
Tidal Volume is the amount of air inhaled or exhaled per breath. This is increased, allowing more oxygen to get around the body to working muscles.
What occurs externally on the body?
Sweat production and skin reddening are two physical short term adaptations to the Cardiorespiratory System.
What happens to the blood, and why is this beneficial?
The blood is redistributed, and this is beneficial so that more of it goes to the working muscles and less of it goes to other organ systems such as the Digestive System.
What is cardiac output, and what happens to it during exercise?
Cardiac Output is the amount of blood pumped out of the heart each minute. This is increased during periods of physical exertion.
What happens to your Heart Rate and Breathing Rate, and why is this beneficial?
An increased Heart Rate allows more blood to be pumped around your body. An increased Breathing Rate allows more air to be inhaled and exhaled.
What happens to the Lactic Acid in your blood during exercise?
The Lactic Acid in your blood is increased during exercise.
What happens to the Blood Pressure during exercise, and why is this?
The Blood Pressure is increased during exercise, and this is because your muscles need more oxygen, and your Blood Pressure is simply an indication that your heart is working hard to provide the oxygen to those muscles.
What is Vasoconstriction?
Vasoconstriction is a response to being too cold. The process involves the narrowing of blood cells at the skin surface to reduce heat loss through the surface of the skin.
What is Vasodilation?
Vasodilation is a response to being too hot. The process includes the widening of blood vessels at the skin surface to increase heat loss through the surface of the skin.
What is Stroke Volume, and how is this affected?
Stroke Volume is the amount of blood that is pumped out of the heart each beat. In this case, the Stroke Volume is increased.
What is Hypertension, and how is this affected?
Hypertension is high blood pressure, which can, in extreme cases, lead to a heart attack. In this case, the risk of Hypertension is decreased.
What is Vital Capacity, how is this affected, and how is this beneficial?
Vital Capacity is the largest volume of air that can be exhaled after the deepest breath in. In this case, the performer’s Vital Capacity is increased. This is beneficial because it allows more oxygen to get to the working muscles, maximising athletic performance.
Complete the sentence: Increased efficiency to _______________________________.
Increased efficiency to deliver oxygen and remove waste products.
Complete the sentence: Increased ________ efficiency and _______________.
Increased lung efficiency and gaseous exchange.
What is Maximum Oxygen Uptake (VO2 max), and how is this affected?
VO2 max is the maximum amount of oxygen that one can utilise during maximum exercise. In this case, VO2 max is increased.
