Circulatory System Flashcards
two main body system components of the circulatory system
cardiovascular system and lymphatic system
bat kasali lymphatics
body system that transports oxygenated blood from heart and lungs and all throughout the body and the deoxygenated blood to be returned to its origin
Circulatory System
hollow muscular organ that is also the main organ of the circulatory system with four chambers
heart
chambers of the heart
atria and ventricles
four chambers of the heart
right atrium, left atrium, right ventricle, left ventricle
outer covering of the heart
pericardium
two divisions of the pericardium
visceral and parietal
layers of the heart
epicardium, myocardium, endocardium
chambers of the heart
upper right chamber of the heart that receives deoxygenated blood from the body
right atrium
chambers of the heart
lower right chamber of the heart that receives blood from the right atrium and pumps into the pulmonary artery
right ventricle
chambers of the heart
upper left chamber of the heart that receives oxygenated blood from the lungs
left atrium
chambers of the heart
lower left chamber of the heart that pumps oxygenated blood into the aorta and into the different parts of the body
left ventricle
valves of the heart
tricuspid, pulmonary, bicuspid/mitral, aortic
atroventricular valves
tricuspid and bicuspid/mitral
semilunar valves
pulmonary and aortic
septa of the heart
interatrial and interventricular
septum that separates right and left atria
interatrial septum
septum that separates the right and left ventricle
interventricular septum
systole and diastole that lasts about 0.8 seconds
cardiac cycle
send electrical impulses throughout the myocardium which is initiated by the sinoatrial node
electrical conduction system
sinoatrial node is the pacemaker
provides graphical representation of the cardiac cycle’s activity
electrocardiogram
ECG or EKG
the heart sounds
lubb (first sound) and dupp (second sound)
average heart rate
72 bpm
volume of blood pumped per minute
cardiac output