tunica (redirected from tunica externa vasorum)

tunica /tu·ni·ca/ (too´nĭ-kah) pl. tu´nicae   [L.] a tunic; in anatomy, a general term for a membrane or other structure covering or lining a body part or organ.

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tunica adventi´tia  the outer coat of various tubular structures, made up of connective tissue and elastic fibers.

tunica adventi´tia vaso´rum  t. externa vasorum.

tunica albugi´nea  a dense, white, fibrous sheath enclosing a part or organ.

tunica conjuncti´va  the conjunctiva.

tunica dar´tos  the thin layer of subcutaneous tissue underlying the skin of the scrotum, consisting mainly of the dartos muscle.

tunica exter´na  an outer coat or layer.

tunica exter´na vaso´rum  the outer, fibroelastic coat of the blood vessels.

tunica fibro´sa  fibrous coat; an enveloping fibrous membrane.

tunica inter´na  an inner coat or layer.

tunica in´tima vaso´rum  the innermost coat of blood vessels.

tunica me´dia vaso´rum  the middle coat of blood vessels.

tunica muco´sa  the mucous membrane lining of various tubular structures.

Tunica mucosa lining the walls of the small intestine.

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  a 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.

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tu·ni·ca (tn-k)

n. pl. tu·ni·cae (-k, -s)

An enclosing or enveloping membrane or layer of tissues, as of a blood vessel or other tubular structure.

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tunica

[t(y)o̅o̅′nikə]

Etymology: L, tunic

an enveloping coat or covering membrane.

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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.

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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.