Which is not true of the epidermis?

Question

Which is not true of the epidermis??  
A. It is composed of several layers.  
B. It contains no blood vessels.  
C. It houses the hair follicles.  
D. It contains melanin pigment.

Accepted Answer

Correct Answer: (C)It houses the hair follicles.. 
Rationale: The statement that is not true of the epidermis is that it houses the hair follicles.The epidermis is the outermost layer of the skin and serves as a protective barrier against environmental factors, such as pathogens, UV radiation, and dehydration. While it is involved in several vital functions, it does not house the hair follicles, which are located in the dermis, the layer beneath the epidermis.Let’s explore each statement in more detail:A. It is composed of several layers: This is true. The epidermis is made up of several layers of cells. These layers include the stratum corneum (the outermost layer), stratum lucidum (in some areas like the palms and soles), stratum granulosum, stratum spinosum, and stratum basale (the deepest layer). Each layer serves specific functions, such as cell regeneration and protection.B. It contains no blood vessels: This is true. The epidermis is avascular, meaning it does not contain blood vessels. The cells in the epidermis receive nutrients and oxygen through diffusion from the blood vessels in the underlying dermis. This lack of blood vessels is why the epidermis cannot directly repair itself and why its cells are constantly replenished from the deeper layers.C. It houses the hair follicles: This is false. While the epidermis contributes to the formation of the hair shaft, the hair follicles themselves are located in the dermis, not in the epidermis. The dermis contains the root of the hair follicle, and the hair grows from this root. The epidermis is involved in the outer part of the hair (the hair shaft) as it extends through the skin surface.D. It contains melanin pigment: This is true. The epidermis contains melanocytes, which are specialized cells responsible for producing melanin, the pigment that gives skin its color and helps protect against UV radiation. The amount and type of melanin produced by melanocytes determine the skin's pigmentation.Conclusion: The epidermis does not house the hair follicles; this function belongs to the dermis. Therefore, the correct answer is C. It houses the hair follicles..

Which is not true of the epidermis?

A
It is composed of several layers.

B
It contains no blood vessels.

C
It houses the hair follicles.

D
It contains melanin pigment.

The statement that is not true of the epidermis is that it houses the hair follicles.

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Related Questions

Which is not true of the epidermis?

A It is composed of several layers. B It contains no blood vessels. C It houses the hair follicles. D It contains melanin pigment.

The statement that is not true of the epidermis is that it houses the hair follicles.

Topic Flashcards

Mini Quiz

Related Questions

A
It is composed of several layers.

B
It contains no blood vessels.

C
It houses the hair follicles.

D
It contains melanin pigment.