cardiovascular system Flashcards
of the lung is indeed its tip’its rounded most superior portion
apex
he 5 bones that make up the skull
base
the membrane enclosing the heart
pericardium
each of the two upper cavities of the heart from which blood is passed to the ventricles
atria
each of the two main chambers of the heart, left and right
ventricles
the wall of tissue that separates the right and left atria of the heart
interatial septum
a large vein carrying DE-oxygenated blood into the heart
superior venae cavea
a large vein that carries deoxygenated blood from the lower and middle body into the right atrium of the heart
inferior venae cavea
the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.
pulmonary arteries
a vein carrying oxygenated blood from the lungs to the left atrium of the heart.
pulmonary veins
the main artery of the body, supplying oxygenated blood to the circulatory system
Aorta
are those that connect the atrium to the ventricles and include the mitral valve as well as the tricuspid valve
atrioventricular valves
permits blood to flow one way only, from the left atrium into the left ventricle
bicuspid valves
that is situated at the opening of the right atrium of the heart
tricuspid valves
colloquially known as the heart strings, are cord-like tendons that connect the papillary muscles to the tricuspid valve and the bicuspid valve in the heart
chordae tendineae
each of a pair of valves in the heart, at the bases of the aorta and the pulmonary artery, consisting of three cusps or flaps that prevent the flow of blood back into the heart
semi lunar valves
an artery supplying blood to the heart.
coronary arteries
runs in the coronary sulcus between the right atrium and ventricle and opens into the right extremity of the coronary sinus
cardiac veins
a wide venous channel about 2.25 centimeters in length that receives blood from the coronary veins and empties into the right atrium of the heart.
coronary sinus
a small body of specialized muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals
sinoatrial node
are a unique cardiac end-organ
purkinje fibers
is a small device that’s placed in the chest or abdomen to help control abnormal heart rhythms
pacemaker
the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries.
systole
the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.
diastole
