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A & P Chapter 7 Test

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7 Written Questions

6 Multiple Choice Questions

  1. the loss of heat from a warm body to a cooler object in contact with the warm body.
  2. the loss of heat by air currents moving over the surface of the skin.
  3. 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.
  4. 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.
  5. The same as the integument. Has 2 layers - epidermis and dermis.
  6. 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

  1. stratum germinativumlies 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.

          

  2. melanina skin darkening pigment; stains the surrounding cells, causing them to darken

          

  3. evaporationheat is lost from a warm object to the cooler air currounding the warm object.

          

  4. ceruminous glandFound in the external auditory canal of the ear. Secretes cerumen or ear wax that repels insects and traps foreign material.

          

  5. eccrine glandthe most numerous and widely distributed of the sweat glands. Located throughout the body. Numerous on forehead, neck, back, upper lip, palms and soles. Not associated with hair follicles.

          

  6. dermisouter layer of the skin

          

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