cardiovascular system lab

what is the function of the cardiovascular system

to pump and circulate oxygenated blood to all the tissues and return deoxygenated blood back to the heart

where do arteries carry blood

out and away from the heart

where do veins carry blood

return blood back to the heart

what are the great vessels

aorta, pulmonary trunk, superior and inferior vena cava, right and left pulmonary veins

what side of the heart is the pulmonary trunk located

right

what does the pulmonary trunk split into

right and left pulmonary artery

what side of the heart is the vena cava located

right

what is the job of the vena cava

drain blood from the upper and lower body back into the heart

what great vessel is paired

pulmonary veins

what is the function of the pulmonary veins

carry oxygenated blood from the lungs to the heart

what parts of the heart does the coronary sulcus separate

top and bottom

what parts of the heart does the anterior interventricular sulcus separate

right and left sides

what is the hole in the heart that babies have the closes within 6 months of birth

fossa ovalis

what structure of the heart holds AV valves in place and keeps them shut tight

chordae tendineae

what are the two names of the AV valve on the left side

mitral or bicuspid

what side of the heart receives deoxygenated blood

right side

what side of the heart receives oxygenated blood

left side

what is always the first step of blood flow through the heart

blood returns to the right atrium via superior and inferior vena cava

which coronary vessel is deadly if blocked

anterior interventricular artery

which coronary vessel also returns deoxygenated blood from the myocardium to the right atrium along with the SVC and IVC

coronary sinus

what is the first step of cardiac conduction

sinoatrial node

where is the sinoatrial node located

right atrium

what is the job of the sinoatrial node

generate impulse causing both atria to contract

what is the second step of cardiac conduction

atrioventricular node

where is the atrioventricular node located

near interatrial septum

why does the atrioventricular node have a delayed signal

so atria can fully empty and ventricles can fully fill

what is the third step of cardiac conduction

atrioventricular bundle

what is the job of the atrioventricular bundle

connect the atria to the ventricles

what is the fourth step of cardiac conduction

bundle branches

what is the function of bundle branches

transmit impulse through interventricular septum

what is the fifth step of cardiac conduction

Purkinje fibers

what is the function of the Purkinje fibers

causes both ventricles to contract