Cardiovascular System PP #1

Epi

________- means "above, "cardi /o means "heart "and- um is a noun ending.

QRS complex

The ________ shows the simulation of the ventricles.

T wave

The ________ shows the relaxation of the ventricles.

heartbeat

Each ________ is regulated through electrical impulses from the nervous system, which stimulate the myocardium.

interventricular septum

The bundle of His is a group of fibers in the ________, and travels to the right and left ventricles.

AV

The _______ node transmits the electrical impulse to the Bundle of His.

atrioventricular

The ________ (AV) node is located on the floor of the right atrium, near the interatrial septum.

epicardium

The ________ is the outermost layer of heart muscle and the internal layer of the pericardium.

sinoatrial

The ________ (SA) node is located on the back wall of the right atrium, near the superior vena cava.

membrane

A(n) ________ is a thin, pliable tissue layer that surrounds or covers a body part.

Viscer o

________ means "internal organ, "and- al means "pertaining to ..

ventricles

The ________ are the lower two chambers of the heart, separated by the interventricular septum.

distinct chambers

There are four ________ of the heart, which are separated by walls called septa (SEP- tah) (singular= septum)

right atrium

The ________ gets deoxygenated blood (meaning that the oxygen in that blood has been distributed to the body tissues) from the superior and inferior vena cavae, which are the large veins that collect blood from the body.

electrical conduction

The actions of the ________ system can be visualized as electrical waves, which can help determine whether a heartbeat is normal or abnormal.

Purkinje fibers

The ________ run throughout the ventricles, causing them to contract.

sternum

It is located between the lungs, behind the ________.

myocardium

The ________ is composed of cardiac muscle, which is also called myocardial muscle.

coronary veins

The ________ carry wastes away from the cardiac muscle.

pulmonary veins

Once the blood has been oxygenated, it returns to the heart via the ________.

left ventricle

The ________ is the strongest of the two; it has to contract hard enough to send blood through the entire body, while the right ventricle only has to get the blood through the pulmonary artery.

interatrial septum

The atria (atrium) are the upper two chambers of the heart, separated by the ________.

Pericardial fluid

________ is located between the parietal and visceral layers of the pericardium.

aortic semilunar valve

The ________ is similar to the pulmonary semilunar valve, and controls the blood flow between the left ventricle and the aorta.

electrical impulses

The ________ are controlled by the conduction system of the heart, which consist of three electrical nodes:

coronary arteries

Because the ________ are located at the starting point of the aorta, they provide a constant supply of oxygenated blood to the cardiac muscle.

normal heartbeat

A(n) ________ is described as a sinus rhythm.

right atrium

The impulse of the ________ spreads to both atria, stimulating contraction to force the blood flow to the ventricles.

Epi

means "above," cardi/o means "heart" and -um is a noun ending