Dictionary » B » Basal layer

Basal layer



(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.


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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by munyit
Mon Apr 02, 2012 4:43 am
Forum: Physiology
Topic: Avian and ratite medullary bone
Replies: 0
Views: 2060

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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by Adz795
Mon Jul 04, 2011 7:31 am
Forum: Cell Biology
Topic: Membrane bound or not, Double Membrane.. Help Please...
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Views: 34292

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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by merge
Sat Mar 08, 2008 12:43 pm
Forum: Cell Biology
Topic: Extracellular matrix
Replies: 3
Views: 3695

The Fiber Disease

... skin epidermis undergoes a constant flux as cells in the innermost layer withdraw from the cell cycle, commit to terminally differentiate, move ... of Drosophila and zebrafish Epithelial cells polarize along their apico-basal axis and separate apical from basolateral membrane compartments during ...

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by Skytroll
Fri Jul 07, 2006 4:58 pm
Forum: Human Biology
Topic: 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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by Doc44
Sat Mar 11, 2006 9:41 pm
Forum: Human Biology
Replies: 5
Views: 4549

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