Exercise heart Flashcards
1
Q
What does the respiratory pump do for exercise
A
Negative intrathoraic pressure during inspiration
Increases VR/preload
2
Q
What sets the operating set point of baroreceptors higher
A
Central command
3
Q
Anticipation of exercise is what mechanism
What inputs allow this to occur
A
Feed forward mechanism
Regulated by peripheral inputs
4
Q
The carotid/chemoreflex is only activates during exercise and not rest
A
Means it’s sensitised
5
Q
What does increasing the ventricular wall thickness increase
A
Stroke volume
6
Q
What’s decreased during rest and how does this occur
A
Heart rate decreased
Increase parasympathetic activation
