Integumentary System (AP) Flashcards
An organ system comprised of skin and its associated organs
integumentary system
Elimination of metabolic waste from the body
excretion
The maintenance of a constant internal environment
homeostasis
Accessory structures originating in the dermis that secrete sebum onto hair emerging from the hair follicle
sebaceous glands
Accessory structures that produce ear wax. They are found only in the dermis of the ear canal
ceruminous glands
Accessory structures of the dermis that are in physical association with hair follicles, producing a secretion with an odor (possibly a sex pheromone to humans)
apocrine sweat gland
Tubes arising from the dermis surrounded by invaginations of epithelial tissue, from which hair growth occurs
hair follicles
Accessory structures originating throughout the dermis of the human body that secrete sweat, used primarily for regulation of body temperature
eccrine sweat glands
The outer layer of the skin
epidermis
The middle layer of skin
dermis
Under the dermis
subcutaneous
The deepest layer of the skin
Hypodermis
Which of the following is the layer of skin that forms a protective, waterproof barrier?
Epidermis
Which of the following best describes the function of melanocytes?
Production of melanin
Which of the following layers of the skin contains hair follicles?
Dermis
Which of the following layers of the skin contains a layer of dead cells?
Epidermis
In two to three sentences, describe how the integumentary system reacts to a rise in body temperature.
If the body gets too hot, the integumentary system uses homeostatic strategies to cool it off. Sweat is secreted by the sweat glands. As the water in sweat evaporates, the skin is cooled. Blood vessels also dilate and move closer to the skin surface to try and cool it.
