Chapter 11: The Cardiovascular System Flashcards
What is the main function of the cardiovascular system
transportation
mediastinum
the medial section of the thoracic cavity
which direction is the apex
pointed toward the left hip and rests on the diaphragm
what part is attached to the base of the heart
ascending aorda
what is the wall of the heart called
pericardium
what is the fibrous pericardium
loosely fitting superficial part of the sac
what is the function of the fibrous pericardium
helps to protect the heart and anchors it to surrounding structures
what is the order of the layers of the walls of the heart
epicardium, myocardium, endocardium
what is the myocardium
thick bundles of cardiac muscle twisted and whorled into ring like arrangements; it is the layer that actually contracts
what is the septum
divides the heart longitudinally (interventricular septum or ineratrial septum)
what does the right side of the heart function
pulmonary circuit pump, receives oxygen poor blood from the veins of the body
where does the heart receive oxygen poor blood from
superior and inferior venae cavae
what is the function of the pulmonary trunk
split into the right and left pulmonary arteries
what are the function of the pulmonary arteries
taking blood to the lungs and drops off carbon dioxide
blood returns to the heart from the lungs through what
pulmonary veins
