The Cardiovascular System ( Fill In The Blank )
On the diagram of the ECG, the _____ , or p wave, indicates that an electrical impulse was sent through the atria
A
A bulge or weak area in the wall of the aorta is called an aortic ________.
Anuerysym
The ________ valve is situated between the left ventricle and the aorta and prevents blood from flowing back into the left ventricle.
Aortic
Blood enters the ________ from the left ventricle to be distributed throughout the body.
Aortic Valve
A hardening of the fatty plaque deposits within the arteries is ________
Atherosclerosis
The blood pressure is regulated partly by ________, which measure blood pressure and are located in the aorta and carotid arteries.
Baroreceptors
The ________ valve has two cusps and is located between the left atrium and the left ventricle.
Bicuspid
If an embolus blocks a cerebral artery, the result may be a(n) ________, or stroke.
Cerebrovascular accident
The cusps of valves are anchored by cordlike structures called ________ _________ to bumps of cardiac muscle called papillary muscles.
Chordae tendineae
The T wave, which indicates relaxation of the ventricles, is designated by the letter
E
Inflammation of the inner lining of the heart is called ________.
Endocarditis
The ________ separates the ventricles.
Interventricular septum
The pulmonary veins empty the oxygenated blood into the _______ .
Left Atrium
When the ________ contracts, blood is pushed through the aortic semilunar valve into the aorta.
Left Ventricle
The ________ circuit is the route that blood takes from the heart to the lungs and back to the heart again.
Pulmonary
The pulmonary trunk branches into the left and right ________ , which carry deoxygenated blood to the lungs.
Pulmonary Arteries
When the right ventricle contracts, deoxygenated blood is pushed through the pulmonary semilunar valve into a larger artery called the ________
Pulmonary Trunk
The ________ valve prevents blood from flowing back into the right ventricle. It is called a semilunar valve because its cusps are shaped like a half moon.
Pulmonary Valve
The ________ veins empty oxygenated blood into the left atrium.
Pulmonary Veins
After the impulse flows through the ________, the ventricles contract and the SA node starts the flow of a new impulse
Purkinje fibers
The letters BCD designate the _____ complex, which indicates that an electrical impulse was sent through the ventricles
QRS
When the ________ contracts, blood is pushed through the pulmonary semilunar valve into the pulmonary artery trunk.
Right Ventricle
The _________ circuit is the route blood takes from the heart through the body and back to the heart.
Systemic
The pressure in the arteries caused by ventricular contraction is called the
Systolic
The ________ valve has three cusps, is situated between the right atrium and the right ventricle, and prevents blood from flowing back into the right atrium when the right ventricle contracts.
Tricuspid
Twisted, dilated veins that are usually seen in the lags are called
Varicose
The tightening or constricting of the muscular wall of an artery that decreases blood pressure is called
Vasoconstriction
The widening of the wall of an artery that decreases blood pressure is called
Vasodilation
Blood that is low in oxygen and rich in carbon dioxide enters the ________ of the heart.
Vena Cavae
Veins of the body pick up oxygen-poor blood and empty it into the superior and inferior ________ .
Venae Cavae
When the ventricles relax, blood pressure in arteries is at its lowest. This pressure is called the ________ pressure
diastolic
Fluid retention can cause swelling, or ________, in the legs or feet.
edema
A consistent resting blood pressure measured at 140/90 mm Hg or higher is diagnosed as ________.
hypertension
The atria are separated from each other by a walled membrane known as the ________.
interatrial septum
The ventricles of the heart are separated by the ________ septum.
intraventricular septum
