3100:201 Lecture Notes - Lecture 1: Diabetes Mellitus Type 1, Extracellular Fluid, Endocrine System
Document Summary
1ch 1 (ua f14) introduction - human anat and physiology. Form function: define anatomy (structure), physiology (how it functions, relationship between each. Structural organization: chemical > cellular > tissue > organ > organ system > organism, cell simplest living unit, cell structure, function critical to organism struc/function, 11 organ systems (endocrine, skeletal, muscular, integumentary, nervous, digestive, Homeostasis: relatively stable internal environment (dynamic equilibrium) Set point-point at which homeostasis fluctuates around: loss of homeostasis --> disease, body fluids homeostasis, icf vs ecf. Ecf=extracellular fluid: ecf includes blood plasma, interstitial fluid (tissue fluid,) csf-cerebral spinal fluid , synovial fluid-found in joints, substances move between icf, interstitial fluid and plasma, regulation of homeostasis, nervous and endocrine systems regulatory. 2: feedback systems, include receptor, control center, effector, negative feedback most common, associated with stability, parameter fluctuates w/in range. Direction: response opposes initiating condition, positive feedback triggered by certain stimulus, strengthens. This loss stimulates the hypothalamic thirst center, leading to ingestion of water.
