Heart & BV HW/other questions

what vessels empty into the right atrium?

superior vena cava, coronary sinus, inferior vena cava

what vessels empty into the left atrium?

left and right pulmonary veins

the foramen ovale is an opening between the

left and right atrium

the aorta carries blood away from the

left ventricle

the pulmonary circuit pumps blood through the _____ side of the heart and the systemic circuit pumps blood through the ______ side

pulmonary right systemic left

The right side of the heart receives blood from the body and pumps through the _______ ________ to the ________

pulmonary circulation to lungs

The delivery of oxygen and nutrients to the tissues of the body is accomplished through the _________ circulation.

systemic

The period of ventricular ejection is immediately followed by

isovolumetric relaxation

this arrow indicates the

fibrous pericardium

What structure allows blood to flow between the atria in the embryo and fetus?

foramen ovale (foramen ovalis is the depression that remains)

How many pulmonary veins empty blood into the left atrium?

4

atrioventricular valves ensure one-way blood flow from

atria to ventricles

what does label A represent?

visceral pericardium

The alternate name for the left atrioventricular valve is the _____ valve

bicuspid

which ventricle has thicker walls?

left

these contract first to tense the chordae tendineae prior to the ejection of blood

papillary muscles

blood exits the right ventricle through this valve

pulmonary semilunar

blood exits the left ventricle through the

aortic semilunar

at a given point in time, blood flows in the heart from both ______ to both _______

both atria to both ventricles

the record that is a composite recording of all cardiac action potentials

ecg

If cardiac muscle cells are unable to repolarize, this would cause

the heart rate to decrease, potential cardiac arrest

the epicardium covers the

surface of the heart

all cardiac veins empty into the ______, which empties into the _______

coronary sinus; right atrium

Contraction of the papillary muscles would

prevent the AV valves from protruding into the atria

describe the structure of capillaries

single layer of simple squamous epithelium on top of a basement membrane

which type of capillary has the biggest holes?

sinuosidal

systemic circulation begins when the ______ ventricle pumps blood into the aorta

left