7 Written questions
6 Multiple choice questions
- a skin darkening pigment; stains the surrounding cells, causing them to darken
- outer layer of the skin
- associated with hair follicles and found in the axillary and genital areas. Respond to emotional stress and become active when the person is frightened, upset, in pain or sexually excited. They are stimulated by sex hormones and are more active during puberty. Sweat doesn't have a strong odor unless allowed to stay on skin, where it is degraded by bacteria into chemicals and produces BO.
- Found in the external auditory canal of the ear. Secretes cerumen or ear wax that repels insects and traps foreign material.
- lies on top of the dermis and has access to rich supply of blood. The cells are continuously dividing, producing millions of cells per day. As they divide, older cells are pushed to the surface of the epithelium. As they move to the top, the cells begin to die and undergo a process of keratinization, whereby tough protein called keratin is deposited within the cell.
- the mechanism wherby the body balances heat produciton and heat loss.
6 True/False questions
keratin → a skin darkening pigment; stains the surrounding cells, causing them to darken
radiation → the loss of heat from a warm body to a cooler object in contact with the warm body.
stratum corneum → the surface area of epidermis. Composed of 30 layers of dead, flattened keratinized cells.
sebaceous gland → Oil glands associated with hair follicles and found in all areas of the body that have hair. Secrete sebum that flows into the fair follicle and then out onto the surface of the skin. This lubricates and helps waterproof the hair and skin and inhibtis the growth of bacteria on the surface of the skin.
dermis → outer layer of the skin
convection → the loss of heat from a warm body to a cooler object in contact with the warm body.