Week One And Homeostasis Flashcards
What are the three types of anatomy?
1) gross (macroscopic)
2) microscopic
3) developmental
Physiology definition
Study of FUNCTIONS of the body’s structural machinery.
What is the Principle of Complementarity?
Function always reflects structure
OR
structure determines function
_____________ determines ______________
ANATOMY DETERMINES PHYSIOLOGY
List components of an organism. (Smallest to largest)
Atom. Molecules. Cell. Tissue. Organ. Organ system. Organism.
5 survival needs
1) nutrients
2) oxygen
3) water
4) appropriate body temp
5) appropriate atmospheric pressure
8 necessary life functions
Maintaining boundaries. Digestion. Movement. Excretion. Responsiveness. Metabolism. Reproduction. Growth.
What is homeostasis?
Dynamic state of equilibrium.
To maintain stable internal conditions despite continuous environmental changes.
Anatomy definition
Study of STRUCTURE of body parts and their relationships to one another
What does homeostatic control depend on?
COMMUNICATION
Endocrine and nervous system
3 interdependent components of control mechanisms
1) receptor
2) control center
3) effector
Two things receptor does.
1) detects stimulus
2) sends input (info) to control center
What is the control center and what are the two things it does?
Brain or spinal cord
1) analyzes input and determines response
2) sends output (info) to effector
What is the effector and what are the two things it does?
Muscle or gland
1) provides means for response
2) 2 types of feedback influence stimulus
What is negative feedback?
Does the opposite of the original stimulus
