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ameloblastic layer the inner layer of cells of the enamel organ, which forms the enamel prisms of the teeth.
abrasion layer a protective covering of gelatin enclosing an emulsion on x-ray film; called also overcoat.
bacillary layer layer of rods and cones.
basal layer of endometrium the deepest layer of the uterine endometrium; it provides the regenerative endometrium after menstrual loss of the functional layer.
basal layer of epidermis stratum basale.
blastodermic layer germ layer.
clear layer stratum lucidum.
columnar layer mantle layer.
compact layer of endometrium a sublayer of the functional layer of endometrium, which faces the lumen of the uterus and contains the necks of the uterine glands.
enamel layer the outermost layer of cells of the enamel organ.
functional layer of endometrium the layer of endometrium facing the lumen of the uterus; its cells are cast off at menstruation and childbirth. Sublayers are the compact layer and the spongy layer. It is known as the decidua during pregnancy.
ganglionic layer of cerebellum the thin middle gray layer of the cortex of the cerebellum, consisting of a single layer of Purkinje cells.
germ layer (germ cell 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 stratum germinativum.
2. the deep layer of the cortex of the cerebellum.
3. the layer of follicle cells lining the theca of the vesicular ovarian follicle.
half-value layer the thickness of a given substance which, when introduced in the path of a given beam of rays, will reduce its intensity by one half.
Henle's layer the outermost layer of the inner root sheath of the hair follicle.
1. stratum corneum.
2. the outer, compact layer of the nail.
malpighian layer stratum germinativum.
mantle layer the middle layer of the wall of the primordial neural tube, containing primordial 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.
odontoblastic layer the epithelioid layer of odontoblasts in contact with the dentin of teeth.
Ollier's layer the innermost layer of the periosteum.
prickle-cell layer stratum spinosum.
layer of rods and cones the layer of the nervous part of the retina, located between the pigmented part and the external limiting membrane, containing the sensory elements, the rods and cones.
spinous layer stratum spinosum.
spongy layer of endometrium a sublayer of the functional layer of endometrium, underlying the compact layer and containing the tortuous portions of the uterine glands.
subendocardial layer the layer of loose fibrous tissue uniting the endocardium and myocardium.
subepicardial layer the layer of loose connective tissue uniting the epicardium and myocardium.
zonal layer of thalamus a layer of myelinated fibers covering the dorsal surface of the thalamus.
the living layer of the epidermis comprising the stratum basale, and stratum spinosum.
The deepest layer of the epidermis, from which the outer layers develop.
malpighian layerA layer of skin usually defined as the basal layer of epidermis (stratum basale epidermidis [NH3]) and/or the prickle cell layer (stratum spinosum epidermidis [NH3]).
Malpighian layerthe uppermost layer of the vertebrate epidermis where cell division is active and pigment (melanin) may occur in the cells. It is now often called the germinal layer of the epidermis.
Malpighi,Marcello, Italian anatomist, histologist, and embryologist, 1628-1694.
malpighian bodies - small nodular masses of lymphoid tissue attached to the sides of the smaller arterial branches. Synonym(s): malpighian glands; malpighian nodules; splenic lymph follicles
malpighian capsule - Synonym(s): glomerular capsule
malpighian cell - a cell of the stratum spinosum of the epidermis.
malpighian corpuscles - Synonym(s): renal corpuscle
malpighian glands - Synonym(s): malpighian bodies
malpighian glomerulus - a tuft formed of capillary loops at the beginning of each nephric tubule in the kidney. Synonym(s): malpighian tuft
malpighian layer - Synonym(s): malpighian stratum
malpighian nodules - Synonym(s): malpighian bodies
malpighian pyramid - Synonym(s): renal pyramid
malpighian rete - Synonym(s): malpighian stratum
malpighian stigmas - the points of entrance of smaller veins into the larger veins of the spleen.
malpighian stratum - the living layer of epidermis comprising the stratum basale, stratum spinosum, and stratum granulosum. Synonym(s): malpighian layer; malpighian rete
malpighian tubules - in insects, slender tubular or hairlike excretory structures.
malpighian tuft - Synonym(s): malpighian glomerulus
malpighian vesicles - the minute air-filled vesicles on the surface of an expanded lung.
named after Marcello Malpighi, an Italian anatomist.
lymphoid follicles in the spleen.
see bowman's capsule.
see renal corpuscle.
the stratum basale (basal layer) and the stratum spinosum (prickle-cell layer) of the epidermis considered together.