Chapter 1 Flashcards
What are the subdivision of physiology into fields
-based on organ systems
-focuses on cellular and molecular levels of the body
List the level of structural organization
Chemical, Cell, Tissue, Organ System, Organism
What is the structural pieces of the chemical level
Atoms, molecules, organelles
How many organ system are there
11
What are the Necessary Life functions
-Maintaining boundaries
-Movement
-Responsiveness
-Digestion
-Metabolism
-Excretion
-Reproduction
-Growth
What are the needs for survival
-Nutrients
-Oxygen
-Water
-Normal body temp
-Appropriate atmospheric pressure
What are some nutrients we need
carbohydrates, proteins, fats, minerals and vitamins
What are the three components of homeostasis?
receptor, control center, and effector
Receives input from receptor
Control Centrr
Recieves output from control center
Effector
Negative and positive feedbacks are examples of
Effector
Afferent pathway
Approaches
From the receptor to control center
Efferent pathway
Exits
From the control center to the effector
Positive feedback
Amplifies the effect
Causes variable to continue in the same direction as initial change
Positive feedback
