Heart Flashcards
1
Q
role in the cardiovascular system
A
the heart produces blood pressure and causes the blood to circulate through the vessels
2
Q
in order to supply the tissues with oxygen
A
the heart must send blood to the respiratory organs period to the rest of the body ( -this may be a single circuit in gill-breathing animal
-or a pair of circuits in lung-breathing animals)
3
Q
the heart contains two types of chambers
A
atria and ventricles
4
Q
atria are
A
“entrances” to the heart that receive blood from the veins and send it to the ventricles
5
Q
ventricles are
A
“exists” to the heart that receive blood from the atria and send it out to one of the vascular circuits
6
Q
an increase in metabolic rate means
A
an increase in the number of chambers
