cardiovascular/heart test

_____ is not associated with ventricular systole.

Heart is relaxed

what structure divides the left atrium from the right atrium?

Interatrial septum

the flow of blood through a capillary bed is called ____.

Microcirculation

you notice a missing P wave on a patient's electrocardiogram and believe there is a problem with the ___.

Sinoatrial node

the volume of blood pumped out by each ventricle with each heartbeat is called the _____

Stroke volume

the term that means heart contraction is _____.

Systole

coronary artery disease results from ____.

The accumulation of fatty substances within the blood vessels

the correct sequence of layers of a typical blood vessel, from superficial to deep, are _____.

Tunica externa, tunica media, tunica intima

the pointed, inferior portion of the heart, known as the _____, rests on the diaphragm and is oriented toward the left hip.

apex

these vessels have thicker walls and a heavier tunica media

arteries

venules drain into these tiny beds of vessels

capillaries

where nutrient and gas exchange occurs

capillaries

which type of vessel is constructed only from tunica intima?

capillaries

tunica ___, the middle layer of a typical blood vessel, contains smooth muscle and elastic fibers.

media

the sinoatrial node is located in the _____.

right atrium

the tricuspid valve is located between the ____.

right atrium and right ventricle

larger vessels with valves to prevent backflow

veins

vessels with thinner walls and oxygen-poor blood

veins

the first heart sound, "lub", is caused by the closure of the ____ valves

Atrioventricular

substances tend to leave the bloodstream at the arterial end of the capillary because ____.

Blood pressure is higher at the arterial end of the capillary.

the correct path for the transmission of an impulse in the intrinsic conduction system of the heart is _____.

sinoatrial node, atrioventricular node, atrioventricular bundle, right and left bundle branches, purkinje fibers

the volume of blood pumped out of a ventricle with each heartbeat is known as ____.

stroke volume