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How many layers does an arterial wall possess?
Tunica Adventitia. Tunica media, Tunica intima
Why would the tunica media and tunica adventitia not be present in a capillary?
To permit material exchange between blood and tissues.
Are veins thicker than arteries?
The tunica media is thicker in arteries than in veins.
What tissue like the endothelium lines the blood vessels?
Intra (Tunica intima) - simple squamous Media (Tunica media) - Fibrous Connective Tissue (FCT) Externa (Tunica adventitia) Fibrous Connective Tissue (FCT)
What are the main functions of theb three vein layers 1 tunica intima 2tunica media 3 tunica adventitia?
they help the vein to stretch to prevent over expansion
What are the histological differences between artery and vein?
The tunica media of arteries is larger than that of veins of same size.The tunica adventitia is larger in veins than arteries of same size.
What tunic is supporting and protective?
The Tunica Externa/ Adventitia.
What are the layers of the bladder?
tunica mucosa, muscularis, adventitia
What tunic is also called the adventitia?
Tunica externa
What are the layers of arteris?
The tunica intima is the innermost layer containing mostly endothelium, the one through which the lumen runs. Surrounding this is tunica media which mostly muscle tissue. And finally surrounding this is the outermost layer, the tunica adventitia which is mostly connective tissue.
6 Why would the tunica media and tunica adventitia not be present in a capillary?
Because capillaries are very thin. many times as few as one red blood cell wide, and only have enough room for a layer of endothelial tissue, in the form of the Tunica Intima.
What is the difference between large veins and medium sized veins?
large veins have narrow tunica intima.and tunica media consist of many layers of smooth muscle which are separated by collagenous connective tissue,and have very few elastic fibers.tunica adventitia is broad,and formed by collagen,tunica adventitia have vasa vasorum.example is femoral and renal vein. in medium size veins tunica intima is a bit more then endothelial call.and have fibrous supporting layer.tunica media is composed of 2 to 4 layers of smooth muscle fibers.tunica adventitia is thick layer and made up of collagen fibers. ........................... maniba ,hebei united medical university tangshen ,,hebei .,,,china
