40.1 - Homeostasis is the maintenance of constant...

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Homeostasis is the maintenance of constant conditions in the internal environment of an organism. Epithelial tissue is where nutrients are exchanged. Collagen in connective tissue makes up 25% of protein in body (Stomach has epithelial, connective, muscle, and nervous tissue) Homeostasis depends on the ability to regulate the functions of organs and organ systems Regulatory systems: endocrine and nervous Maintenance of homeostasis is dependent on information received, specifically feedback information that signals any discrepancy between the set point (the particular desired condition or level) and the conditions present. Cells, tissues, and organs are effectors that respond to commands from regulatory systems. Effectors are controlled systems . Regulatory systems obtain, process, and integrate information, then issue commands to controlled systems, which effect change. Regulatory systems receive information as negative feedback , which causes effectors to reduce or reverse a process; or
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40.1 - Homeostasis is the maintenance of constant...

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