A&P Flashcards
(55 cards)
Define Anatomy
The science of structure and relationships among structures of the human body
Define physiology
The science of body functions
What are the 6 levels or organization
Chemical, cellular, tissue, organ, system, organismal
What level includes atoms and molecules
Chemical
What level is the basic structural and functional units of an organism
Cellular
What are the types of cells in the body
Muscle, nerve, blood
What are some structures of the cell
Organelles: nucleus, mitochondria, lysosomes
What level groups cells together to perform particular functions
Tissue
What are the 4 types of tissues in the body
Epithelial, connective, muscular, nervous
What level can you identify tissue structures
Organ
What level do related organs have a common function
System
What level is considered the whole human body
Organismal
Define homeostasis
Maintenance of relatively stable conditions
What two systems control homeostasis
Nervous and endocrine
How does homeostasis change to maintain cellular life
It is dynamic
The nervous system ____ changes
Detects
The endocrine system _____ changes
Corrects
What is a feedback system
Condition that is continually monitored, and evaluated to maintain homeostasis
A disruption to a controlled condition…
Stimulus
What can cause a stimuli
External environment, internal environment, psychological stresses
In most cases, the disruption of homeostasis is ______ and _____
Mild and temporary
What are the three components of a feedback system
Receptor, control center, effector
What are the two types of feedback systems
Positive and negative
What is a negative feedback system
Reverses change in a controlled condition
