Intro to A&P Part 2 Flashcards
Teleological Approach
Answers the WHY questions, addresses function of the system
Mechanistic Approach
Answers the HOW questions of physiology, addresses process of the system
Emergent property
Property of a system that is greater than the sum of its individual parts
Homeostasis
Maintenance of a relatively stable internal environment
Regulated Variable
Things that cannot be too high or too low
Ex: pH 7-7.5, temperature 98.6, respiratory rate, heart rate, blood pressure, ions
Physiologic Control System
A series of steps in the body that can bring a regulated variable into range
Integumentary System
Largest group of cells exposed to the environment
Failure to maintain homeostasis disrupts normal function and may result in..
Disease
Autocrine signal
Act on the same cell that secreted them
Paracrine Signal
Are secreted by one cell and diffuse to adjacent cells
Interdependence
Cells, tissues, organs, and organ systems interact with one another (are dependent on the function of one another) to sustain life
Structure-Function relationship
The function of a cell, tissue, or organ is determined by its form.
Cell-to-Cell Communication
The function of the organism requires that cells pass information to one another to coordinated their activities.