Bio 220 - Chapter 1 Intro to Physio

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Purpose of physiology

maintain homeostasis
physiology covers what levels of life?
- chemistry
- molecular biology
- cell biology
- physiology
- ecology
what is the basic unit of study for physiology?

The organ system
Interactions between organ systems (ex. endocrine and reproductive systems both react to hormones):

Integration
Teleological answer
- Why
- Purpose
Mechanistic answer
- How
- Process
The steady state
Keeping conditions stable through physio mechanisms
Regulated variables

Homeostasis
Adaptive significance
Fluctuations
Survival

Physiology reflects evolution
Name the fluid of the extracellular fluid
- Plasma
- Interstitial fluid
Name the fluid of the intracellular fluid

Cytoplasm
Name the three fluid pools
- Extracellular fluid (plasma & interstitial fluid)
- Intracellular fluid (cytoplasm)
Name the recurrent themes in Physiology
- Structure
- Biological energy use
- Communication
- Homeostasis and control systems
- (5th theme) Mass action
Inability to maintain homeostasis
Disease state

Pathology
The study of the disease state
Investigates how the body failed to fx properly

Pathophysiology
Physiological mechanisms that cannot be studied using any recognized techniques:

Emergent properties