Question

Draw a longitudinal section of a hair follicle in the rectangular box to the right. Label the following on your drawing: Glassy membrane • Hair shaft • Hair root Hair matrix Hair (dermal) papilla Melanocytes Internal root sheath External root sheath Medulla Cortex Cuticle Stop and think: What part of the Integumentary system do hair, nails and sweat glands derive from? Longitutinal section through a hair follicle

Answer 1

Funer Root Streath outer Root - Hair shaft Cuticle. Streath a - Cortex Medulla Glassy mentrane Hair matrix Hair lapella Root Melanocytes Fig Fig: hongitudelleen hongitudnal section of a hair

Accessory structures of the skin include hair, nails, sweat glands, and sebaceous glands. These structures embryologically originate from the epidermis layer of the skin.B/c the skin consist of three layers

Epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.

Dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.

Deeper Subcutaneous tissue (hypodermis) is made of fat and connective tissue.