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53 Cards in this Set

  • Front
  • Back
Capillaries only contain a tunica ____, resting on a basal lamina.
A single layer of endothelial cells and the underlying , subendothelial connective tissue composed of ____ connective tissue and ____ smooth mucle cells.
tunica intima,, loose, few
The tunica ____ is composed of concentrically arranged layers of mostly ___ cells.
media, smooth
In the tunica media, interspersed with the smooth muscle cells are _____, some _____, and collagen type ___.
proteoglycans, elastic fibers, III
The tunica adventia is composed mainy of _____, type ___ collagen, and longitudinally oriented ____.
fibroblasts, I, elastic fibers
The tunica ____ of large arteries becomes continuous with the connective tissue elements surrounding the vessel.
The tunica adventia of large arteries and veins contain a system of vessels called the _____.
vasa vasorum
Vasa vasorum are ___, ___ and ____ in the ____ and outer part of the media.
arterioles, capillaries, venules, adventia
The biggest arteries close to the heart are ___ arteries, followed by ____ arteries and then the _____.
elastic, muscular/distributing, arterioles
The tunica ____ of an elastic artery is formed by layers of smooth muscle intercalated by ___ laminas.
media, elastic
In elastic arteries, ___ limit stretch.
collagen fibers
____ cells syntesize collagen and elastin in elastic and muscular arteries.
smooth muscle cells
In elastic arteries the tunica ___ is less thick than the tunica ____.
adventia, media
In all blood vessels that contain media, smooth muscles can repair tunica ____ in response to growth factors secreted by ____ cells.
intima, endothelial
Larger muscular arteries have an external ___ lamina which seperates tunica ___ from tunica ____.
elastic, adventia, media
The internal elastic lamina seperates the ___ from the ___ and is only found in ____.
tunica intima, tunica media, arteries
In both arterioles and small arteries, the tunica ____ is very thin.
Arterioles branch into small vessels called ____ with a discontinuous layer of muscle cells.
In very small arterioles, the internal and external lamina are ____.
Veins have much smaller tunica ___ than arteries of the same size.
Veins can have lots of smooth muscle in ____, to help move blood.
Typically, veins have ____ walls that arteries, and a ____ lumen relative to its tunicas.
thinner, larger
Leucocytes cross the walls of ___ and ___.
veins, capillaries
Endothelial cells express ____ after ____ is released from the tissue. This binds to the ____ on WBC, and they slide through ____ junctions through ____ action.
selectins, cytokines, carbohydrates, tight, integrin
Numerous pinocytotic vesicles are seen in ___ capillaries, and are responsible for carrying larger substances.
continuous (somatic)
____ capillaries are characterized by their absence of fenestrae.
_____ are present in some continuous capilaries and post capilary venules, and serve a contractile fxn since they do not have tunica ____.
pericytes, media
____ capilaries have a layer of endothelial cells attached by ____ junction and a continuous ____.
continuous, tight, basal lamina
____ capilaries have pores that may be bridged by ultrathin diaphrams.
_____ capilaries are found in tissues where rapid interchange occur, such as the kidneys, intestine, and endocrine glands.
In ___ capillaries, endothelial cells form a discontinuous layer and are seperated from one another by wide spaces.
____ capillaries have an enlarged diameter, and are found in the liver and hematopoeitic organs.
Direct communication between arterioles and venules.
arteriovenous anastomosis
As present in the kidney glomerulus, arteriole to capillary to arteriole.
arteriole portal system
As present in the liver, venule to capillary to venule.
venous portal system
The _____ is a layer of the heart continuous with the tunica ____ of the blood vessels entering and leaving the heart.
endocardium, intima
An endocardium layer, the ____ is composed of simple squamous endothelium and an underlaying fibroelastic connective tissue.
The subendothelium layer of the endocardium is ____ connective tissue, containing small blood vessels, nerves and ____ fibers.
subendothelium, purkinje
The middle and thickest layer of the heart with specialized conducting cardiac muscle cells.
Epicardium is the ____ layer of the heart also called the visceral layer of the _____.
outermost, pericardium
The _____ layer of loose connective tissue contains the coronary vessels, nerves, ganglia and fat.
___ transmit electrical conductance to ventricles.
purkinje fibers
___ is a chronic disease characterized by abnormal thickening and hardening of the arterial walls.
Atherosclerosis involves changes to the ___ layer of arteries.
____ is the progressive build up of plaque on arterial walls.
A characteristic of athersclerosis, which is lipid deposits producing a yellow swelling on the endothelial surface.
Plaques develope when ____ accumulate at the site of arterial damage and ____ act to form a fibrous cap over it.
LDL, platelets
____ are triggered by endothelial cell damage into the intima of vessels.
Macrophage take up excess lipid forming ____ cells, that release GFs and cytokines that act on _____.
foam, smooth muscle cells
Due to the secretions of foam cells, smooth muscles migrate to the ___ and secrete fibrous tissue, forming the ____, in order to isolate the foam cells from the circulation.
intima, smooth muscle cap
Lymph dumps back into veins at the ____ and ___ ducts.
thoracic, right lymphatic
The ____ system acts to reabsorb fluid from the interstitial space in order to prevent ___ formation.
lymphatic, edema
____ fibrils hold open lymphatic capilaries and anchor them to surrounding CT.
anchoring fibrils