tunica

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.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

tu·nic

(tū'nik),

Coat or covering; one of the enveloping layers of a part, especially one of the coats of a blood vessel or other tubular structure.
See also: layer.

Synonym(s): tunica

[L. tunica]

Farlex Partner Medical Dictionary © Farlex 2012

tunica

(to͞o′nĭ-kə, tyo͞o′-)

n. pl. tuni·cae (-kē′, -sē′)

An enclosing membrane or layer of tissue.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

tu·nic

(tū'nik)

Coat or covering; one of the enveloping layers of a part, especially one of the coats of a blood vessel or other tubular structure.
Synonym(s): tunica.

[L. tunica]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

tunica

A covering or investing membrane or layer of tissue.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

tunica

any layer of tissue or membrane that encloses a structure or organ in either an animal or plant.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005