Which of the following is not found in the epidermis?
Melanocytes
Fibroblasts
Stem cells
Keratinocytes
Tactile cells

Question

BlackTom AI · Accepted Answer

The question asks which option is not found in the epidermis.

Option A: Melanocytes. These pigment-producing cells reside in the epidermis, particularly in the stratum basale, where they transfer pigment to keratinocytes. So this is found in the epidermis.

Option B: Fibroblasts. These cells synthesize collagen and other extracellular matrix components and are predominantly located in the dermis, not in the epidermis. Their usual habitat is the deeper connective tissue layer, making this option not part of the epidermis.

Option C: Stem cells. In the epidermis, the basal (stratum basale) layer contains stem cells that divide to renew keratinocytes. Hence, stem cells are indeed found in the epidermis.

Option D: Keratinocytes. These are the most abundant epidermal cells, forming the protective outer layer as they differentiate and migrate upward through the epidermal strata. Therefore, they are clearly part of the epidermis.

Option E: Tactile cells. Also known as Merkel cells, these are specialized mechanoreceptors located in the epidermis (often in the basal layer) and contribute to tactile sensation. Thus, they are found in the epidermis.

Putting it together, the option that is not found in the epidermis is the one describing fibroblasts, whose typical location is the dermis rather than the epidermal layer.

BIOL109LV02 HW#5 Skin; Bone Structure; Skull; Axial Skeleton; Exercises 7; 8; 9

Which of the following is not found in the epidermis? Melanocytes Fibroblasts Stem cells Keratinocytes Tactile cells

View Explanation

Log in for full answers

Similar Questions

此问题已重新计分。 Skin covering the _________ blank has sweat glands but no hair follicles or sebaceous glands. forearm buttocks abdomen fingertips back

What is the name of the pigment producing cells of the epidermis

This layer of the epidermis is filled with Eleidin, and only found in the palms of the hands and soles of the foot.

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler