Definitions for: Membrane

[n] a thin pliable sheet of material
[n] a pliable sheet of tissue that covers or lines or connects organs or cells of animals

Webster (1913) Definition: Mem"brane, n. [F., fr. L. membrana the skin that
covers the separate members of the body, fr. L. membrum. See
Member.] (Anat.)
A thin layer or fold of tissue, usually supported by a
fibrous network, serving to cover or line some part or organ,
and often secreting or absorbing certain fluids.

Note: The term is also often applied to the thin, expanded
parts, of various texture, both in animals and

Adventitious membrane, a membrane connecting parts not
usually connected, or of a different texture from the
ordinary connection; as, the membrane of a cicatrix.

Jacob's membrane. See under Retina.

Mucous membranes (Anat.), the membranes lining passages and
cavities which communicate with the exterior, as well as
ducts and receptacles of secretion, and habitually
secreting mucus.

Schneiderian membrane. (Anat.) See Schneiderian.

Serous membranes (Anat.), the membranes, like the
peritoneum and pleura, which line, or lie in, cavities
having no obvious outlet, and secrete a serous fluid.

Synonyms: tissue layer

See Also: adventitia, animal tissue, axolemma, basilar membrane, Bowman's capsule, capsula glomeruli, chorioallantoic membrane, chorioallantois, choroid, choroid coat, ciliary body, cornea, diaphragm, drumhead, eardrum, endocranium, endosteum, ependyma, fertilization membrane, fetal membrane, flat solid, gel, gelatin, glomerular capsule, head, hyaloid membrane, intima, iris, lamella, lens capsule, meninges, meninx, midriff, mucosa, mucous membrane, myringa, periosteum, perithelium, phospholipid, retina, sarcolemma, semipermeable membrane, serosa, serous membrane, sheet, synovial membrane, synovium, trophoblast, tunic, tunica, tympanic membrane, tympanum, web

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