tunica media


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tunica

 [too´nĭ-kah] (L.)
a tunic or coat; used in anatomic nomenclature to designate a membranous covering of an organ or a distinct layer of the wall of a hollow structure, as a blood vessel.
tunica adventi´tia the outer coat of various tubular structures.
tunica albugi´nea a dense white fibrous sheath that encloses a part or organ, such as the testicle or ovary.
tunica conjuncti´va the conjunctiva.
tunica dar´tos dartos.
tunica exter´na an outer coat, such as the fibroelastic coat of a blood vessel.
tunica inter´na an inner coat or layer.
tunica in´tima the innermost coat of a blood vessel; called also Bichat's tunic.
tunica me´dia the muscular middle coat of a blood vessel.
tunica muco´sa the mucous membrane lining of various tubular structures.
tunica muscula´ris the muscular coat or layer surrounding the tela submucosa in most portions of the digestive, respiratory, urinary, and genital tracts.
tunica pro´pria the proper coat or layer of a part, as distinguished from an investing membrane.
tunica sero´sa the membrane lining the external walls of the body cavities and reflected over the surfaces of protruding organs; it secretes a watery exudate.
tunica vagina´lis tes´tis the serous membrane covering the front and sides of the testis and epididymis.
tunica vasculo´sa a vascular coat, or a layer well supplied with blood vessels.

tu·ni·ca me·di·a

[TA]
the middle, usually muscular, coat of an artery or other tubular structure.
Synonym(s): media (1)

tunica media

a muscular middle coat of an artery. See also arterial wall.

tu·ni·ca me·di·a

(tū'ni-kă mē'dē-ă) [TA]
The middle, usually muscular, coat of an artery or other tubular structure.
Synonym(s): media (1) .

tunica media

middle layer of blood vessel wall; formed of muscular and elastic tissue

tu·ni·ca me·di·a

(tū'ni-kă mē'dē-ă) [TA]
The middle, usually muscular, coat of an artery or other tubular structure.
Synonym(s): media (1) .

tunica media (too´nikə mē´dēə),

n the muscular middle layer of an artery.

tunica

pl. tunicae [L.] a covering or coat; a membranous covering of an organ or a distinct layer of the wall of a hollow structure, as a blood vessel. See also tunic.

tunica adventitia
the outer coat of various organs, blood vessels and other structures, usually made up of loose connective tissue.
tunica albuginea
a dense, white, fibrous sheath enclosing a part or organ, such as is present on the testis.
tunica albuginea ovarii
see tunica ovarii (below).
tunica conjunctiva
the conjunctiva.
tunica dartos
dartos.
tunica externa
an outer coat, especially the fibroelastic coat of a blood vessel.
tunica flava abdominis
an extensive sheet of elastic tissue that helps to support the abdomen. It is conspicuous in large animals as a yellow corset over the ventral abdomen and is a modified part of the deep fascia and aponeurosis of the external abdominal oblique muscle. It contributes to the deep fascia for the mammary gland or the scrotum.
tunica intima
the innermost coat of blood vessels; called also Bichat's tunic.
tunica media
the middle coat of blood vessels.
tunica mucosa
the mucous membrane lining of various tubular structures.
tunica muscularis
the muscular coat or layer surrounding the tela submucosa in most portions of the digestive, respiratory, urinary and genital tracts.
tunica ovarii
capsule of dense collagenous tissue, underlying the covering epithelium, covers each ovary. Called also tunica albuginea ovarii.
tunica propria
the proper coat or layer of a part, as distinguished from an investing membrane.
tunica serosa
the membrane lining the external walls of the body cavities and coating the surfaces of intruding organs; it secretes a watery exudate.
tunica vaginalis
the double-layered sleeve of peritoneum that lines the scrotum and inguinal canal (parietal layer) and invests the testis, epididymis and spermatic cord (visceral layer).
tunica vasculosa
a vascular coat, or a layer well supplied with blood vessels, e.g. of the eye.
tunica vasculosa lentis
vascular envelope of the lens in the developing fetus.
References in periodicals archive ?
It was observed that percentage thickness of tunica media was greatest in the fourth decade (72.
Till 20 years, elastic laminas in tunica media were long and parallel to each other and of uniform thickness.
The less developed tunics, less number of elastic fibers arranged in few concentric layers in the tunica media and the largeness of the lumen could be due to low blood volume, blood pressure and slow blood flow at this stage.
com/ ), was usually located in tunica adventitia of aorta, not in tunica media, and no direct intercellular junctions were found between them and SMCs.
Proximal left coronary artery featuring inflammatory infiltrate in the tunica adventitia and tunica media, with dissection of tunica media and resultant narrowing of the vessel lumen (hematoxylin-eosin, original magnification X200).
Our case presents similarities to atherosclerosis described in humans and other avian species in that lesions were primarily found in the tunica intima and the luminal side of the tunica media, and the lesions were composed, as demonstrated by histology and electron microscopy, primarily of extracellular lipids and foamy macrophages.
Sites of deposition appear to correspond to areas in which elastin fibres and smooth muscle cells in the tunica intima and tunica media were disrupted (Fig.
2014) had reported the thickness of tunica media of an artery is directly proportional to its pulsatory power.
In our study, LAD at its origin presented a histological picture of that of an elastic artery, with tunica media being the thickest of all the three layers; tunica intima is relatively thick and tunica adventitia is relatively thin (Fig.
A(SMN)] (numero de nucleos de celulas musculares lisas de la tunica media por area), la [S.