7 Written Questions
6 Multiple Choice Questions
- the inner layer of the skin The dermis is anchored ot a subcutaneous layer.
- a skin darkening pigment; stains the surrounding cells, causing them to darken
- the mechanism wherby the body balances heat produciton and heat loss.
- The same as the integument. Has 2 layers - epidermis and dermis.
- 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.
- a tough protein deposited within the cell. It hardens and flattens the cells as they move toward the outer surface of the skin. It also makes the skin water resistant.
6 True/False Questions
conduction → the loss of heat from a warm body to a cooler object in contact with the warm body.
eccrine gland → 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.
convection → the loss of heat from a warm body to a cooler object in contact with the warm body.
radiation → occurs when liquid becomes a gas. ie. rub liquid alcohol on the skin. It evaporates and cools the skin.
suboriferous gland → sweat glands located in the dermis. Glands secrete sweat, whihc is secreted into a duct tht opens onto th skin s a pore.
subcutaneous layer → It lies under the skin and is called the hypodermis. Composted of loose connective and adipose tissue. Helps to insulate the body from extreme terperatures and anchors skin to the underlying structures. A few areas have no subcutaneous layer, so the skin anchors directly to the bone.