spongy layer


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spongy layer

The middle layer of the uterine endometrium; contains dilated portions of uterine glands. Synonym: stratum spongiosum
See also: layer

layer

1. stratum; a sheetlike mass of tissue of nearly uniform thickness, several of which may be superimposed, one above the other, as in the epidermis.
2. a commercial fowl which is laying eggs, i.e. a female of more than about 5 months of age, up to the stage of being a 'spent hen' suitable only for slaughter.

basal layer
1. the deepest layer of the epidermis. See also stratum basale.
2. the deepest layer of the uterine mucosa.
blastodermic layer
germ layer (see below).
clear layer
stratum lucidum; the clear translucent layer of the epidermis, just beneath the horny layer.
columnar layer
1. layer of rods and cones.
2. mantle layer.
compact layer
the layer of the endometrium nearest the surface, containing the necks of the uterine glands.
functional layer
the compact and spongy layers of the endometrium considered together.
cerebellar ganglionic layer
the thin middle gray layer of the cortex of the cerebellum, consisting of a single layer of Purkinje cells.
germ layer
any of the three primary layers of cells formed in the early development of the embryo (ectoderm, entoderm and mesoderm), from which the organs and tissues develop.
germinative layer
any proliferative layer such as the basal layer of the epidermis or the lower layer of the claw, from which the claw grows.
granular layer
1. the layer of epidermis between the clear and prickle-cell layers; called also stratum granulosum.
2. the deep layer of the cortex of the cerebellum.
3. the layer of follicle cells lining the theca of the vesicular ovarian follicle.
horny layer
1. stratum corneum; the outermost layer of the epidermis, consisting of dead and desquamating cells.
2. the outer, compact layer of the claw, etc.
keratohyaline layer
granular layer (1).
mantle layer
the middle layer of the wall of the primitive neural tube, containing primitive nerve cells and later forming the gray matter of the central nervous system.
nervous layer
all of the retina except the pigment layer; the inner layer of the optic cup.
prickle-cell layer
stratum spinosum; the layer of the epidermis between the granular and basal layers, marked by the presence of prickle cells.
layer of rods and cones
a layer of the retina immediately beneath the pigment epithelium, between it and the external limiting membrane, containing the rods and cones.
spinous layer
prickle-cell layer.
spongy layer
the middle layer of the endometrium, containing the tortuous portions of the uterine glands.
subendocardial layer
the layer of loose fibrous tissue uniting the endocardium and myocardium.
zonal layer of thalamus
a layer of myelinated fibers covering the dorsal surface of the thalamus.
References in periodicals archive ?
layer absent; sclerotesta lightly verrucose; spongy layer absent.
Yet when they tried to pare that layer further, oxygen corrupted the underlying silicon, creating a spongy layer of silicon dioxide beneath the STO.
This breaks down the spongy layer just under the skin called collagen.