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TISSUE LAYER
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I. (noun)
Sense 1
Meaning:
A pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
Synonyms:
membrane; tissue layer
Classified under:
Hypernyms ("tissue layer" is a kind of...):
animal tissue (the tissue in the bodies of animals)
Meronyms (substance of "tissue layer"):
phospholipid (any of various compounds composed of fatty acids and phosphoric acid and a nitrogenous base; an important constituent of membranes)
Hyponyms (each of the following is a kind of "tissue layer"):
adventitia; tunic; tunica (an enveloping or covering membrane or layer of body tissue)
synovial membrane; synovium (a thin membrane in synovial (freely moving) joints that lines the joint capsule and secretes synovial fluid)
serosa; serous membrane (a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid)
semipermeable membrane (a membrane (as a cell membrane) that allows some molecules to pass through but not others)
sarcolemma (an extensible membrane enclosing the contractile substance of a muscle fiber)
retina (the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve)
perithelium (tissue layer around small blood vessels)
periosteum (a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles; contains nerves and blood vessels that nourish the enclosed bone)
mucosa; mucous membrane (mucus-secreting membrane lining all body cavities or passages that communicate with the exterior)
meninges; meninx (a membrane (one of 3) that envelops the brain and spinal cord)
lamella (a thin membrane that is one of the calcified layers that form bones)
iris (muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye)
intima (the innermost membrane of an organ (especially the inner lining of an artery or vein or lymphatic vessel))
hyaloid; hyaloid membrane (the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina)
fertilization membrane (the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon)
ependyma (thin epithelial membrane lining the ventricles of the brain and the spinal cord canal)
endosteum (vascular membrane that lines the inner surface of long bones)
endocranium (membrane lining the inside of the skull)
eardrum; myringa; tympanic membrane; tympanum (the membrane in the ear that vibrates to sound)
diaphragm; midriff ((anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration)
cornea (the transparent dome-shaped anterior portion of the outer covering of the eye; it covers the iris and pupil and is continuous with the sclera)
ciliary body (the part of the tunic of the eye between the choroid coat and the iris)
choroid; choroid coat (a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye)
fetal membrane (any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus)
basilar membrane (a membrane in the cochlea that supports the organ of Corti)
axolemma (outer membrane covering an axon)
Bowman's capsule; capsula glomeruli; glomerular capsule (thin double membrane surrounding the glomerulus of a nephron)
web (membrane connecting the toes of some aquatic birds and mammals)
chorioallantoic membrane; chorioallantois (the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois)
trophoblast (the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall)
