Question | Answer |
The integumentary system is composed of (5) | the integument(skin)
its derivatives(hairs, sweat glands, oil glands) |
Skin provides | protection to the body |
The skin is composed of what three parts | -the epidermis
-dermis (contains CT)
-Hypodermis (subcutaneous layer) |
What are the five layers of the epidermis? | -stratum corneum
-stratum lucidum
-stratum granulosum
-stratum spinosum
stratum basale/ germinativum |
Dermis contains | fibres of collagen together w/ various kinds of cells |
what is the most superficial region of the dermis? | papillary region w/ finger like projections in the epidermis |
what is the remainder of the dermis called | dermal layer |
within the dermal layer is | sebaceous glands connected to the hair folicle |
sebum | secretion of an oily substance |
Glands in the dermis | sweat glands or sudoriferous glands |
sweat glands deliver sweat to | sweat gland ducts which lead to sweat gland pores |
sweat | preforms an excretory function by delivering metabolic waste products to the skin surface for removal
also regulates body temp |
Hairs | epidermal growwths distributed in varrying amounts and textures throughout the body |
what is the superficial part of the hair | the shaft projecting above the body surface |
the root | is the portion penatrating into the dermis |
the root of the hair is covered in the | root sheath, which is a continuation of the epidermis |
what is at the base of the hair follicle? | enlarged hair bulb |