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What are the layers of the heart wall?
The inner layer of the heart wall lining the ventricles and atria completely, and also covers the cardiac valves
The middle layer of the heart wall and the thickest layer; primarily composed of cardiac muscle fibers
The outermost layer of the heart wall; visceral layer of pericardium
Endothelium: continuous simple squamous epithelium
subendothelium: dense irregular CT
subendocardium: loose CT that contains small vessels, nerves, and purkinje fibers
this node entrains the pace of the heart
this node relays the pace
purkinje fibers end in ___
T/F Purkinje fibers have no contractile function
___ is the principal tissue of the heart
the cardiac skeleton is made of what 3 parts?
What is the purpose of cardiac valves?
cardiac valves are covered by ___ on both sides
What are the 3 main blood vessels?
What are the 3 layers of a typical blood vessel?
Tunica thickening by the cholesterol deposit induced pathological alteration during ___
the vasa vasorum and nervi vasorum are found in which layer of blood vessels?
The most prominent and thickest layer of arteries is the ___ ___
T/F in elastic arteries the IEL is prominent and easy to see
which type of artery has a tunica media that is rich in smooth muscles: elastic or muscular?
T/F the tunica adventitia is relatively the same size as the tunica media of muscular arteries
these small arteries contain roughly 1-3 layers of smooth muscle in their wall; feed into capillary beds
compared to the lumen of arteries, a vein's lumen is ___ and more ___
in veins, it is typical for the tunica ___ to be the most prominent layer
capillaries have a tunica ___ only
What are the 3 types of capillaries
Where are continuous capillaries typically found?
Fenestrated capillaries are typically found where?
is this an artery or a vein? How can you tell?
is this an artery or a vein? how can you tell?
Is this a muscular artery or an elastic artery? How can you tell?
What is pictured here? How can you tell what this is?
Artery or vein? How can you tell?
What are the black arrows pointing at within this cardiac muscle?