cardiovascular system Flashcards
what vessels are the site of nutrient, gas and waste exchange?
capillaries
what does the pulmonary circuit do?
sends oxygen-poor blood to the lungs
what does the systemic circuit do?
sends oxygen-rich blood and nutrients to the body
What is the deepest layer in the wall of the heart?
Endocardium
which structures are part of the wall of the heart?
epicardium
myocardium
endocardium
which structures are part of the coverings of the heart?
pericardium
fibrous pericardium
parietal pericardium
what is endocardium
blood comes in contact with the layer
what is pericardium
double layer membrane
what is epicardium
contains adipose tissue
what is fibrous pericardium
outer layer of the pericardium
composed of dense connective tissue
what is myocardium
made of cardiac muscle
what is parietal pericardium
serous layer - secretes serous fluid
lines the fibrous pericardium
what is the pericardial cavity?
contains the secreted serous fluid
what is the visceral pericardium?
outermost layer of the wall of heart
called epicardium
what is the aorta?
largest artery in the body and the main artery of the systemic circuit
what is the pulmonary trunk?
large main artery of the pulmonary circuit
what is the left pulmonary vein?
returns blood from the lungs
what is the inferior vena cava?
main vein draining lower body
what is the right pulmonary artery?
brings oxygen poor blood to the lungs
what is the superior vena cava?
large vein that drains the upper body