Question

What are epidermal derivatives?

A) Epidermal derivatives are chemicals produced by the epidermis, such as heparin and prostaglandins.
B) Epidermal derivatives are pigment molecules produced by the epidermis, including carotene and melanin.
C) Epidermal derivatives are secretions produced by the epidermis, including sweat and sebum.
D) Epidermal derivatives are accessory structures that originate from the epidermis during embryonic development, including hair follicles, sebaceous and sweat glands, and nails.
E) Epidermal derivatives are the different cell types found in the epidermis, including epithelial cells and melanocytes.

Answer 1

Epidermal derivatives are accessory structures that originate from the epidermis during embryonic development, including hair follicles, sebaceous and sweat glands, and nails. These structures have various functions such as regulating body temperature, protecting the skin, and providing sensory feedback.

Step-by-step explanation:

Epidermal derivatives are accessory structures that originate from the epidermis during embryonic development, including hair follicles, sebaceous and sweat glands, and nails. These structures are important for various functions such as regulating body temperature, protecting the skin, and providing sensory feedback.

For example, hair follicles are structures where hairs originate. Each follicle is associated with a sebaceous gland, which secretes sebum to coat and waterproof the hair. Sweat glands, including eccrine and apocrine glands, help regulate body temperature and eliminate toxins through sweat production.

Nails are made of dead keratinized cells and protect the extremities of our fingers and toes.