THE
CIRCULATOR
Y SYSTEM
, CORONARY
CIRCULATION
, The heart requires an abundant supply of oxygen and nutrien
Though the heart is only 0.5% of the body’s weight, it uses
the circulating blood to meet its own metabolic needs.
The cardiac muscle is not nourished to any great extent
blood flowing through the heart chambers.
, The heart therefore has its own supply of arteries and cap
that deliver blood to every cell of the myocardium.
The blood vessels of the heart wall constitute the co
circulation.
At rest, these vessels supply the myocardium with about 250
blood per minute.
CIRCULATOR
Y SYSTEM
, CORONARY
CIRCULATION
, The heart requires an abundant supply of oxygen and nutrien
Though the heart is only 0.5% of the body’s weight, it uses
the circulating blood to meet its own metabolic needs.
The cardiac muscle is not nourished to any great extent
blood flowing through the heart chambers.
, The heart therefore has its own supply of arteries and cap
that deliver blood to every cell of the myocardium.
The blood vessels of the heart wall constitute the co
circulation.
At rest, these vessels supply the myocardium with about 250
blood per minute.
