Cardiology Flashcards
The largest vessel in the body that carries oxygenated blood from the left ventricle to the body is the ___
Aorta
The vessel that brings deoxygenated blood to the heart and empties into the right atrium is the ___
Vena Cava
The vessel that carries oxygenated blood from the lungs to the left atrium is called the ___
Pulmonary Vein
The vessel that carries deoxygenated blood from the right ventricle to lungs is called the ___
Pulmonary Artery
The vessels that branch off from the aorta near the top of the heart and carry oxygen to cardiac muscle tissue are called ___
Coronary Arteries
The ___ atrium receives oxygenated blood via the lungs from the pulmonary vein.
Left
During contraction, blood passes from the LEFT ATRIUM through the ___ ___ in to the LEFT VENTRICLE
MITRAL VALVE
The ___ atrium receives deoxygenated blood from the body via the vena cava.
Right
During contraction, blood passes from the RIGHT ATRIUM through the ___ ___ and into the RIGHT VENTRICLE.
TRICUSPID VALVE
The left ventricle receives ___ blood from the left atrium during contraction.
Oxygenated blood
The right ventricle receives ___ blood from the right atrium during contraction.
Deoxygenated blood
As blood flows from the tricuspid valve into the right ventricle, the ___ ___ closes to allow the right ventricle to fill.
Pulmonary valve
During contraction, the ___ ___ closes to prevent backflow, and the
___ ___ opens so that blood goes into the pulmonary artery and to the lungs.
Tricuspid Valve, Pulmonary Valve
During contraction, the ___ ___
closes to prevent backflow of blood and the ___ ___ opens to allow the blood to go into the
aorta and out to the body.
Mitral Valve, Aortic Valve
As blood flows from the mitral valve into the left ventricle, the ___ ___ closes to allow the left ventricle to fill.
Aortic Valve
The ___ ___ separates the left atrium from the left ventricle.
Mitral Valve
The ___ ___ separates the right atrium from the right ventricle.
Tricuspid Valve
The ___ ___ separates the left ventricle from the aorta.
Aortic Valve
The ___ ___ separates the right ventricle from the pulmonary artery.
Pulmonary Valve
The string like tendons which link papillary muscles to valves and aid in opening and closing of the valves are called
Chordae Tendineae
The ___ ___ are connected to valves via the chordae tendineae and contract to open the valves.
Papillary Muscles
The heart is composed of ___ muscle.
Striated
___ occurs when the ventricles contract. The right ventricle pumps blood into the pulmonary artery and the left ventricle pumps blood into the aorta
Systole
___ is the period of relaxation within the heart when the ventricles are filling with blood.
Diastole
The ___ ___ is located at the lower right atrium. It sends impulses through the
right and left bundle branches (at the Bundle of His) which send impulses to cause cardiac
contraction. The ___ ___ delays the
impulse until the ventricles are completely filled.
Atrioventricular Node (AV Node)
The ___ ___ is the natural pacemaker of the heart. It starts the electrical impulses in
the heart, which then travel to the atrioventricular node (AV node) at the lower right atrium, spread
through nerves in the ventricles, and stimulate a wave of contractions.
Sinoatrial Node (SA Node)
___ ___ are specialized cardiac muscle cells that conduct impulses deep within
the myocardium assisting to transmit impulses from the AV node to the ventricles.
Purkinje Fibers
