section name header

Definition

stratum

(strā'tŭm , strat'ŭm, strā'tă, strat'ă)

Plural: strata

[L. stratum, a covering]

In anatomy, a layer.

SEE: layer.

s. basale 1The innermost, deepest layer of the endometrium.2Stratum germinativum.

s. compactum The outermost layer of the endometrium.

s. corneum The outermost layer of the skin, consisting of clear, dead, scaly cells, those of the surface layer being constantly desquamated. SYN: horny layer.

s. disjunctum

Variant: stratumdisjunction

The outermost layer of the stratum corneum, which is being shed constantly.

SEE: stratum corneum.

s. functionale The functional layer of the endometrium.

s. germinativum A row of cuboid cells that divide to replace the rest of the epidermis as it wears away. It is the innermost layer of the epidermis and is part of the stratum malpighii. SYN: stratum basale (2).

SEE: stratum malpighii.

s. granulosum A layer of cells containing deeply staining granules of keratohyalin found in the epidermis of the skin between the stratum spinosum and the stratum corneum.

SEE: keratohyalin; stratum malpighii.

s. lucidum The translucent layer of the epidermis between the stratum corneum and the stratum granulosum in the palms and soles.

SEE: stratum corneum; stratum granulosum.

s. malpighii The inner layer of the epidermis. It includes both the stratum germinativum and spinous layer.

SEE: spinous layer; stratum germinativum.

s. papillare Papillary layer.

s. reticulare The recticular layer of the corium just beneath the papillary layer.

s. spinosum

Variant: stratum spinosum epidermidis

Spinous layer.

s. spongiosum Spongy layer

s. submucosum The layer of smooth muscle fibers of the myometrium lying contiguous with the endometrium.

SEE: myometrium.

s. subserosum The layer of smooth muscle fibers of myometrium that lies immediately under the serous coat.

SEE: myometrium.

s. supravasculare The layer of circular and longitudinal muscle fibers of the myometrium lying between the stratum subserosum and the stratum vasculare.

SEE: myometrium; stratum subserosum; stratum vasculare.

s. vasculare The layer of smooth muscle fibers in myometrium lying between the stratum submucosum and the stratum supravasculare.

SEE: myometrium; stratum submucosum; stratum supravasculare.