histo4_questions Flashcards
EPIcardium is composed of ____ and ______
mesothelium and the subepicardial layer of loose connective tissue
____ is the visceral layer of the pericardium
EPIcardium
the subepicardial layer of loose CT of the EPICARDIUM contains___ ____ and ___
nerves, adipose tissue, and the coronary blood vessels.
____ is homologous to the adventitia
Epicardium
___ is homologous to the intima
Endocardium
the ____ lines the atria and ventricles.
ENDOcardium
the _____ contains ENDOTHELIUM and a subendothelial layer of connective tissue.
endocardium (not mesothelium like epicardium)
The elastic\nlaminae of the AORTA help to smooth out ____ with distance from the\nheart.
pressure differences
The tunica media and adventitia are about the same thicknes with ____ artery
mixed
the _____ artery media\nhas FEWER elastic lamellae and there is a more obvious INTERAL ELASTIC MEMBRANE
mixed
scattered ____ in the subendothelial layer of elastic artery
smooth muscles
the endothelial cells of ELASTIC ARTERIES contain ____ bodies that are membrane-bound inclusions that have a dense matrix containing von Willebrand factor.
Weibel-Palade
the intima or media is thicker with elastic arteries?
media
The fenestrated lamellae of ELASTIC ARTERY in the tunica media function for the ____ of the walls
Distension (nutrient passage?)
the _____ gets progressively thinner and disappears in smaller diameter specimens
external elastic lamina
foam cells indicate (fat-laden immune cells) ____ or ____
plaque-build up, or atherosclerosisz
_____ consists of endothelium, basal lamiina, and subendothelial layer of loose connective tissue that can contain an “occasional smooth muscle cell
tunica intima
TUNICA MEDIA compposed of smooth muscle and variable amounts of elastif fibers and lemellae, ____, and ____
reticular fibers and proteoglycans
tunica AVENTICA is outermost layer composed of____ and longituidinally oriented _____.
fibroblasts and type I collagen and elastic fibers
veins or arteries have a more extensive vasa vasorum because of the low nutrient and oxygen content?
veins
internal elastic lamina borders the _____
media
Media is relatively thick and is composed of many concentric layers of\nsmooth muscle cells bounded in larger muscular arteries by an____
external elastic lamina
Larger blood vessels have a vasa vasorum in the ____
adventitia
____ arteries are found coronary, renal, mesenteric,\nbrachial femoral and others.
muscular
The ____ arteries distribute blood to tissues and organs regulated by\nautonomic nervous system control of the media.
muscular
____ is the\nprecapillary sphincter that regulates blood flow into capillaries.
metarteriole
ARTERIOLES function to maintain normal blood pressure in the ___ system
arterial
ARTERIOLES reduce the ___ of the blood entering the capillaries.
pressure
Which of the following structure is liekly to contian most vasa vasorum?\n\nlarge vein\nblood capillary\naorta\nm. venule\nm. artery
large vein
which of the following ocmponents of a msucualr artery changes the least with age?\n\ntunica media\ntunica intima\ninternal elastic lamina\nexternal elastic lamina\ntunica aventitia
tunica aventitia
What is the function of elastic rebound of conducting arteries? helps maintain ____ blood pressure
arterial
Which is most liekly to contian longitudianl smooth muscle in its tunica adventitia?\n\nblood capillary\nmuscular artery\nlarge vein\naorta\nmuscular venule
large vein
Which blood vessel type shows the most pathophysioloical changes with aging? ___ artery
elastic
Which blood vessel type has greatest cross sectional area in the human body
capillary
