Heart quiz 4 Flashcards
The heart wall consists of ? & performs ?
The wall largely consists of a middle layer of muscular tissue called myocardium, which performs the pumping action of the heart
Function of the cardiac valves
Valves open and close in response to changes in pressure and insures one-way blood flow through the heart
Blood in the coronary sinus will drain where
Into the right atrium
The coronary circulation is not part of
The pulmonary circuit
The primary pacemaker of the heart is ..
The SA node ressure, ation, placenta and the uterus
The heart sound is the result of
The cardiac valves closing
Cardiac output is the product of
The stroke volume and the heart rate
Regular exercise tends to reduce
Resting heart rate in both males and females
A persons cardiovascular fitness can be improved
With regular exercise
Where does the heart lay
The heart lies within the mediastinum
