Exam 2 Lecture 1 - 14:08 Exam2Lecture1 L.,cloak,ordisguise...

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14:08 Exam 2 Lecture 1: L. integumentum – covering, cloak, or disguise Integumentary System (Parts): Includes: o Hair o Nails o Sweat o Sebaceous Glands Behavior and function: First line of defense against bacteria, chemicals, and injury Helps regulate temperature – sweat Prevents water loss or gain Sensory And… Respiration? (only if you are a frog, worm, etc.) Ancient Notions of Skin Breathing: Blood vessels ‘breath’ through pores in the skin o Via movement vessels draw in and expel out air (pneuma) through  channels in the skin o Regulates heat in the body Proponents of Skin Breathing: Empedocles (c. 492-432 BC) o Physician, philosopher Galen (AD 129-c. 210) o Ideas most influential in Medicine
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Combining Forms: Adip/o = Fat  Adipoid; adipocyte Lip/o = Lipoma; Lipocele Steat/o = Steatolytic; Steatopygia (Fat butt) What are the three combining forms for skin?
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