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Basal layer

Definition

noun

(1) The innermost layer of the epidermis made up of basal or germinative cells capable of proliferating by mitosis to give rise to new cells for other epidermal layers.

(2) The layer of endometrium that is less responsive to hormonal stimuli and does not desquamate, but preserved. It gives rise to the new functional layer shed during a menstrual period.


Supplement

In the skin, the cells of basal layer are actively dividing to replenish lost skin cells from normal shedding. This layer has many melanocytes, or melanin-producing cells that account for the pigmentation of skin and hair.

In the endometrium, the basal layer is a layer of cells that is located underneath the functional layer. Unlike the functional layer, the basal layer is not shed during menstruation.


Synonym: stratum basale.


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Avian and ratite medullary bone

... the spicules of medullary bone easily separated from the originating layer, but why the thin basal layer remains attached to the cortex? Did it have any mechanical strength or the thin ...

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Mon Apr 02, 2012 4:43 am
 
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Membrane bound or not, Double Membrane.. Help Please...

Shouldn't cilia be included in membrane bound structures? They have a layer of plasma membrane over them, though their basal part does not.

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Extracellular matrix

The epithelial cells is the outer most surface basal lamina also known as the basement membrane (extracellular matrix) layer Support tissue is the next layer Is this the right order? The basal lamina is the basement membrane? ...

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The Fiber Disease

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... mucosa, but like someone has already posed it is probably refering to layer of dense irregular connective tissue that lies under basal layer of the stratified squamous and the layer of simple columnar epithelium. So best ...

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Sat Mar 11, 2006 9:41 pm
 
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