I Basic organization of Body Plans Hierarchy Systems composed of Organs Organs composed of Tissues Tissues composed of Cells II Overview of the systems A) Integumentary - outer covering B) Muscular - movement C) Skeletal - support, movement, protection D) Circulatory - circulatory materials and immunity E) Lymphatic - circulation and immunity F) Respiratory - gas exchange G) Digestive - digestion and absorption H) Urinary/Excretory - discharge nitrogenous waste I) Endocrine - messages and control J) Nervous - control K) Reproductive - reproduction V Homeostasis A) maintenance of stable internal environment, requires integration of all systems B) Example of body temperature IV Integumentary System - outer covering of the body A) Current Issues - Acne 1) inflammation of the skin due to excess production of sebum (oil from sebaceous gland) 2) causes of acne - hormones (androgens), increased sebum production, bacteria enlarged glands 3) American Academy of Dermatology B) Integument 1) Epidermis - thin outer layer with skin pigments 2) Dermis - thicker inner layer, contains vessels, hair or feather follicles, nerves, sweat glands, sebaceous glands
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