Integument
Consist of skin and its accessory structures such as hair, nails, and sweat glands
Skin
Serves as protection against injury types, heat regulating organ, path of excretion, and sense organ
Thin skin
Contains hair follicles
Thick skin
Has outer layer called stratum corneum and is found on palms of hands and soles of feet
Layers
Epidermis, dermis, and hypodermis
Sebaceous Glands
-associated with hair follicles
-secrete oily substance called sebum lubricating shaft of hair
Sweat Glands
-open onto surface of skin via pores
-classified by secretions into eccrine sweat glands and apocrine sweat glands
Eccrine Glands
secrete thin solution of water, salt, and urea
Apocrine Glands
secrete milky solutions of fats and proteins