Valves
This valve is also called the right atrioventricular valve.
What is the tricuspid valve?
Known as the heart's pacemaker.
What is the sinoatrial node?
A closed system that transports blood away from the heart to the tissues and then back again.
What is the peripheral vascular system?
This loose sac protects the heart and prevents rubbing against the thoracic wall.
What is the pericardium?
The brachiocephalic veins merge into this vein that enters the right atrium of the heart.
What is the superior vena cava?
The bicuspid valve is also known as this.
What is the left atrioventricular valve?
What is the atrioventricular (AV) node?
Narrowing of blood vessels that will result in an increase in the blood pressure.
What is vasoconstriction?
This tissue makes up the bulk of the heart wall.
What is the myocardium?
This vein drains the blood from the spleen, pancreas, gastrointestinal tract and gallbladder.
What is the hepatic portal vein?
Allows passage of blood from the right ventricle to the pulmonary artery.
What is the semilunar valve?
This is the only electrical connection between the atria and the ventricles.
What is the bundle of His?
The smooth, endothelial cells lining the blood vessels.
What is the tunica intima?
The force that blood exerts against the internal walls of the blood vessels.
What is blood pressure?
Three major arteries emerge from the aortic arch.
What are the brachiocephalic, left common carotid and the left subclavian artery?
This tissue connects the valves to the papillary muscle.
What is chordae tendineae?
These fibers spread the action potential towards the apex of the heart.
What are the Purkinje fibers?
The smallest vessel in the arterial system.
What are arterioles?
This causes severe pain in the muscles of the lower leg caused by poor circulation.
What is claudication?
These arteries supply the myocardium with oxygenated blood.
What are the coronary arteries?
Blood from the lungs enters the left atrium via this valve.
What is the mitral valve?
Parasympathetic and sympathetic nerve fibers for the heart originate here.
What is the medulla oblongata?
These arteries supply the myocardium with oxygenated blood.
What are the coronary arteries?
Phleb is the root word for this structure.
What is a vein?
The two internal carotid arteries and basilar artery unite in a circular arrangement at the base of the brain.
What is the circle of Willis?