GENERAL HISTOLOGY

Detailed explanation-1: -Your integumentary system is your body’s outer layer. It consists of your skin, hair, nails and glands. These organs and structures are your first line of defense against bacteria and help protect you from injury and sunlight.

Detailed explanation-2: -The functions of the skin include: Protection against microorganisms, dehydration, ultraviolet light, and mechanical damage; the skin is the first physical barrier that the human body has against the external environment.

Detailed explanation-3: -Answer and Explanation: (e) Exchange of gases is not a function of the integumentary system. This is a function of only the respiratory system, where gas is exchanged in the alveoli of the lungs.