Circulatory System Functions Quiz Flashcards
Systemic Circulation
delivers blood to all body cells and carries away waste
Pulmonary Circulation
eliminates carbon dioxide and oxygenates blood
Mediastinum
area where the heart is located in the thorax
Atria
thin upper chambers of the heart that receive blood returning to the heart though the veins
Ventricles
thick muscular lower chambers of the heart, receive blood and then pump it out of the heart through arteries
Superior Vena Cava
return blood to the right atrium
Inferior Vena Cava
pumps blood to the right atrium
Right Atrium
receive blood returning to the heart through veins
Tricuspid Valve
in between the right atrium and ventricle
Right Ventricle
pumps blood to the lungs through the pulmonary arteries
Pulmonary Valve
between the right ventricle and the pulmonary trunk
Pulmonary Trunk
carries oxygen-poor blood to the pulmonary arteries from the right ventricle
Pulmonary Arteries
carries oxygen-poor blood to the lungs from the right ventricle
Lungs
process of gas exchange
Pulmonary Veins
carries oxygen-rich blood from the lungs to the left atrium
Left Atrium
pumps blood to the left ventricle
Bicuspid Valve
in between the left atrium and ventricle
Left Ventricle
pumps blood to the aorta to be distributed to the body
Aortic Valve
between the left ventricle and the aorta, prevents backflow
Aorta
carries blood away from the heart to the rest of the body
Base
where the heart sits/lays, blunt end
Apex
the point at the bottom of the heart
Epicardium
outermost layer of the heart
Myocardium
middle, muscle layer
Endocardium
inner layer that touches the blood
Atrioventricular Groove
junction of the right atrium and the right ventricle
Chordae Tendineae
“heart strings” & attachments on the valves
Papillary Muscles
located in the ventricles of the heart, attach to the cusps of the atrioventricular valves via the chordae tendineae and contract to prevent inversion or prolapse
Interventricular Septum
separates the two ventricular chambers
Auricles
structures on the atria that look like two earlike flaps
Left and Right Coronary Arteries
supply blood to the myocardium, arises from the ascending aorta
Pericardium
encloses the heart, 2 layers
Visceral Pericardium
inner layer of pericardium
Parietal Pericardium
outer layer of pericardium
Interventricular Groove
separates the right ventricle from the left ventricle
Coronary Sinus
large venous chamber that carries blood from the cardiac veins to the right atrium
Vein
returns oxygen-poor blood to the heart, thin walled
Venule
small vein that collects blood from capillaries
Artery
carries oxygen rich blood from the heart, thick walled
Arteriole
very small artery that delivers blood to the capillaries