HK 368 Homework 3
How does the cardiovascular system maintain exercise intensity with the drop in central blood volume associated with a hot compared to moderate temperature environment?
Increasing stroke volume
Which adaptation aids the trained athlete in reaching a higher preload in the left ventricle and, thus enhanced exercise performance?
Cardiac (heart) hypertrophy
Greater sweat volume will always result in greater body cooling?
False
Increasing aortic pressure without a change in peripheral resistance or venous pressure would result greater blood flow?
False
The a-vO2 difference increase as exercise intensity increases due to:
Greater extraction of oxygen from arterial blood
An increase in SNS stimulation to the heart would increase:
heart rate and contractility