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