Readers ask: What Is The Function Of The Stratum Spinosum Layer?

The stratum spinosum is partly responsible for the skin’s strength and flexibility. From there the keratinocytes move into the next layer, called the stratum granulosum. This layer gets its name from the fact that the cells located here contain many granules.

What is the function of the stratum layers?

The most important function of the skin is to protect the body from things in the environment that may cause harm. The stratum corneum is sometimes described as a brick wall. The corneocytes that make up the cell envelope are layers, like bricks, mortared together by lipids, that create the outer water barrier.

What is special about stratum spinosum?

The prickle cell layer (stratum spinosum) is the next layer (8-10 layers of cells). The cells in these layers have lots of desmosomes, which anchor the cells to each other, and contain thick tufts of intermediate filaments (keratin).

How do you describe stratum spinosum?

The stratum spinosum is a Latin term, which literally means spinous layer. This layer is found in in between the stratum basale and the stratum granulosum. The keratinocytes in the stratum spinosum are referred to as prickle cells. These keratinocytes are polyhedral in shape and with large pale-staining nuclei.

What process occurs in the stratum spinosum?

From the stratum basale, the keratinocytes move into the stratum spinosum, a layer so called because its cells are spiny-shaped cells. The keratinocytes produce a lot of keratin in this layer—they become filled with keratin. This process is known as keratinization.

Why is the stratum spinosum important in maintaining the integrity of the skin?

Why is the straum spinosum important in maintaining the integrity of the skin? It creates greater surface area with the dermal papillae, so more desmosomes may be present to create a stronger connection between the two layers.

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Where is the stratum spinosum?

The stratum spinosum is the layer above the stratum basalis and is typically five to ten cell layers thick. Keratinocytes adhere to each other by desmosomes.

What is the stratum spinosum quizlet?

Stratum Spinosum. 8 – 10 layers (prickly layer) superficial of stratum basale. Has the same organelles as stratum basale. Stratum Granulosum. 3-5 layers flattened keratinocytes, apoptosis, contains protein keratohhyalin which converts tonofilaments in keratin.

What cells does the stratum spinosum have?

Stratum spinosum, 8-10 cell layers, also known as the prickle cell layer contains irregular, polyhedral cells with cytoplasmic processes, sometimes called “spines”, that extend outward and contact neighboring cells by desmosomes. Dendritic cells can be found in this layer.

Why is the stratum spinosum spiny?

As the name suggests, the stratum spinosum is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome. The desmosomes interlock with each other and strengthen the bond between the cells.

What is Spinosum?

The stratum spinosum (or spinous layer/prickle cell layer) is a layer of the epidermis found between the stratum granulosum and stratum basale. Their spiny (Latin, spinosum) appearance is due to shrinking of the microfilaments between desmosomes that occurs when stained with H&E.

What is the function of Germinative layer of epidermis?

The stratum germinativum is a Latin term, which translates to germinative layer. This layer is composed of germinative (or basal) keratinocytes. These cells are actively dividing to provide new cells to replenish lost skin from normal shedding.

Does stratum spinosum undergo mitosis?

This image shows the stratum basale and stratum spinosum. The cells of the stratum basale are cuboidal and undergo mitosis to give rise to all of the cells in the layers above. The keratinocytes in the stratum spinosum have a prickly appearance.