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Unformatted text preview: Chapter 40 Review 1. Animals need to regulate body Set point Feedback o Positive-set point stays o Negative-returns environment to set point o Feed forward-changes set point Physiological o Effectors o Sensors o Regulatory systems-hormones 2. Physiology-study of functions of all parts and processes 3. Homeostasis-maintenance of constant conditions in internal environment 1. Internal Environment Cell specialization Organ system Cells are bathed in extracellular fluids (EFC) 7. Tissue Assemblage of cells Four kinds o Epithelial Sheets of tightly packed cells Cover inner and outer surfaces of body Barriers Ex. skin o Connective Loosely packed cells Function to give shape Types Cartilage Bone Adipose tissue Blood o Muscle Cells that can contract-become shorter Most abundant in body Types Skeletal Smooth Cardiac o Nervous Processes information Controls other organ systems 2 types...
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- Spring '08