Question

identify the following layers of the epidermis from the descriptions. 1. the statrum corneum is a single layer of columnar or high cuboidal cells resting on a basement membrane. 2. the stratum (click to select) is composed of many layers of keratinocytes that are firmly attached to each other by desmosomes. this layer also contains dendritic cells. 3. the stratum (click to select) is composed of 3 - 5 layers of flattened keratinocytes containing dark staining keratohyalin granules. 4. the stratum (click to select) is a translucent layer composed of 3 - 5 layers of keratinocytes without nuclei or organelles. 5. the stratum (click to select) is composed of up to 30 layers of cornified, dead cells.

Explanation:

1. The stratum basale is a single - layer of columnar or high cuboidal cells on a basement membrane.
2. The stratum spinosum has many layers of keratinocytes attached by desmosomes and dendritic cells.
3. The stratum granulosum has 3 - 5 layers of flattened keratinocytes with keratohyalin granules.
4. The stratum lucidum is a translucent layer of 3 - 5 layers of anucleate keratinocytes.
5. The stratum corneum is made of up to 30 layers of cornified, dead cells.

Answer:

1. basale
2. spinosum
3. granulosum
4. lucidum
5. corneum