PGY 206 UKY EXAM 1 QUESTIONS AND
ANSWERS 100% CORRECT
physiology - ANSWER the study of how living organisms work (function)
1. hypothesis
2. experiment
3. revised hypothesis
4. theory - ANSWER what all is included in the *scientific method*?
variable - ANSWER the factor that is regulated
sensorcreceptor - ANSWER detects change in the environment from a particular set point
integrating center (control, command center) - ANSWER receives information from the
sensors and makes a decision about what needs to be done
Walter Cannon - ANSWER described this relative constancy of our internal environment as
*homeostasis*
Claude Bernard - ANSWER constancy or stability of our *internal environment* is required for
us to exist
, effectors - ANSWER make changes according to the information they receive from the
integrating center
negative feedback - ANSWER a change in a variable (x) leads to responses that move the
variable in the direction opposite of the initial change
dynamic constancy - ANSWER a continual adjustment in order to keep a variable relatively
constant
positive feedback - ANSWER a change in a variable leads to responses that move the variable
in the same direction of the initial change
false:
positive feedback has *poor* homeostasis - ANSWER T OR F:
positive feedback has good homeostasis?
death - ANSWER what does positive feedback often result in?
1. blood clotting
2. contractions
3. neuron - opening of voltage gate - ANSWER what are three examples of positive feedback?
ANSWERS 100% CORRECT
physiology - ANSWER the study of how living organisms work (function)
1. hypothesis
2. experiment
3. revised hypothesis
4. theory - ANSWER what all is included in the *scientific method*?
variable - ANSWER the factor that is regulated
sensorcreceptor - ANSWER detects change in the environment from a particular set point
integrating center (control, command center) - ANSWER receives information from the
sensors and makes a decision about what needs to be done
Walter Cannon - ANSWER described this relative constancy of our internal environment as
*homeostasis*
Claude Bernard - ANSWER constancy or stability of our *internal environment* is required for
us to exist
, effectors - ANSWER make changes according to the information they receive from the
integrating center
negative feedback - ANSWER a change in a variable (x) leads to responses that move the
variable in the direction opposite of the initial change
dynamic constancy - ANSWER a continual adjustment in order to keep a variable relatively
constant
positive feedback - ANSWER a change in a variable leads to responses that move the variable
in the same direction of the initial change
false:
positive feedback has *poor* homeostasis - ANSWER T OR F:
positive feedback has good homeostasis?
death - ANSWER what does positive feedback often result in?
1. blood clotting
2. contractions
3. neuron - opening of voltage gate - ANSWER what are three examples of positive feedback?
