HEART combining form

51 terms by iazimi

Create a new folder

Advertisement Upgrade to remove ads

angio/o, vas/o, vascul/o

vessel

aort/o

aorta

arteri/o

artery

cardi/o

heart

coron/o

circle or crown

my/o

muscle

pector/o, steth/o

chest

sphygm/o

pulse

thromb/o

clot

ven/o, phleb/o

vein

varic/o

swollen, twisted vein

ventricul/o

ventricle (belly or pouch)

atrium

upper right or left chamber of the heart

endocardium

membrane lining the cavities of the heart

epicardium

membrane forming the outer layer of the heart

interatrial septum

partition between the right and left atria

interventricular septum

partition between the right and left ventricles

myocardium

heart muscle

pericardium

protective sac enclosing the heart composed of two layers with fluid between

visceral pericardium

layer closest to the heart (visceral = pertaining to organ)

parietal pericardium

outer layer (parietal = pertaining to wall)

pericardial cavity

fluid-filled cavity between the pericardial layers

ventricle

lower right or left chamber of the heart

heart valves

structures within the heart that open and close with the heart beat to regulate the one way flow of blood

aortic valve

heart valve between the left ventricle and the aorta

mitral valve / bicuspid valve

heart valve between the left atrium and the left ventricle

Pulmonary semilunar valve

heart valve opening from the right ventricle to the pulmonary artery (luna = moon)

tricuspid valve

valve between the right atrium and the right ventricle

valves of the veins

valves located at intervals within the lining of veins, espeicially in the legs, which constrict with muscle action to move the blood returning to the heart

arteries

vessels that carry blood from the heart to the arterioles

aorta

large artery that is the main trunk of the arterial system branching from the left ventricle

arterioles

small vessels that receive blood from the arteries

capillaries

tiny vessels that join arterioles and venules

venules

small vessels that gather blood from the capillaries into the veins

veins

vessels that carry blood to the heart from the venules

systemic circulation

circulation of blood throughout the body via arteries, arterioles, capillaries, venules, and veins to deliver oxygen nutrients to body tissues

coronary circulation

circulation of blood through the coronary blood vessels to deliver oxygen and nutrients to the heart muscle tissue

pulmonary circulation

circulation of blood from the pulmonary artery through the vessels in the lungs and back to the heart via the pulmonary vein, providing for the exchange of gases

diastole

to expand; period during the cardiac cycle when blood enters the relaxed ventricles from the atria

systole

to contract; period during the cardiac cycle when the heart is in contraction and blood is ejected through the aorta and the pulmonary artery

normotension

normal blood pressure

hypotension

low blood pressure

hypertension (HTN)

high blood pressure

sinoatrial (SA) node

the pacemaker; highly specialized, neurological tissue impeded in the wall of the right atrium; responsible for INITIATING electrical conduction of the heartbeat, causing the atria to contract and firing conduction of impulses to the AV node

atrioventricular (AV) node

neurological tissue in the center of the heart that receives and amplifies the conduction of impulses from the SA node to the bundle of His

bundle of His

neurological fibers extending from the AV node to the right and left bundle branches that fire the impulse from the AV node to the purkinje fibers

Purkinje fibers / network

fibers in the ventricles that transmit impulses to the right and left ventricles, causing them to contract

polarization

resting; resting state of a myocardial cell

depolarization

change of a myocardial cell from a polarized (resting) state to a state of contraction (de = not ;polarization = resting)

repolarization

recharging of the myocardial cell from a contracted state back to a resting state (re = again; polarization = resting)

normal sinus rhythm (NSR)

regular rhythm of the heart cycle stimulated by the SA node (average rate of 60-100 beats/minute)

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set