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Overview. What is anatomy and physiology?Basic functions of living thingsLevel of structural organizationHomeostasisNegative feedbackPositive feedback. Anatomy and Physiology . AnatomyMicroscopicCytologyHistologyMacroscopic or GrossSurfaceRegionalSystemicSTRUCTURE = FUNCTION! . Physiolo
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1. Introduction to Anatomy and Physiology Chapter 1
Pgs 2-25
2. Overview What is anatomy and physiology?
Basic functions of living things
Level of structural organization
Homeostasis
Negative feedback
Positive feedback
3. Anatomy and Physiology Anatomy
Microscopic
Cytology
Histology
Macroscopic or Gross
Surface
Regional
Systemic
STRUCTURE = FUNCTION! Physiology
Cell
Special
System
Pathology
6. Homeostasis and System Integration Organs heavily dependant upon functioning of others
Think of some examples!
Homeostasis
Maintaining a stable internal environment
Why is that important?
3 components
Receptor
Control (integration) center
Effector
Negative vs. Positive feedback mechanisms
8. Negative Feedback Triggered by a variation outside of normal limits
Automatic response that corrects the stimulus
Opposes or eliminates the stimulus
Mechanism ignores minor variations
Maintains a normal range rather than specific number
What are some examples?
Thermoregulation
How does the body cool itself?
How does the body warm itself?
10. Positive Feedback Initial stimulus produces a response that reinforces the stimulus
Escalating process; increases the stimulus
Blood clotting
What is the immediate danger of a cut?
What would happen if negative feedback was the mechanism used?