Homeostasis

Question 1

Maintenance of constant internal
environment despite fluctuations in the
external or internal environment

Answer 1

Homeostasis

Question 2

• maintenance of constant internal environment despite fluctuations in the external or internal environment
• dynamic state of equilibrium
• homeo = sameness; stasis = standing still

Answer 2

Homeostasis

Question 3

measures of body properties that may change in value

Answer 3

variables

Question 4

examples of variables

Answer 4

body temperature 
heart rate
blood pressure 
blood glucose levels
blood cell counts 
respiratory rate

Question 5

normal extent of increase or decrease around a set point

Answer 5

normal range

Question 6

normal, or average value of a variable

Over time, body temperature fluctuates around a set point

Answer 6

set point

Question 7

components of feedback

Answer 7

receptor
control center
effector

Question 8

detects changes in variable

Answer 8

receptor

Question 9

• receives receptor signal
• establishes set point
• sends signal to effector

Answer 9

Control Center

Question 10

directly causes change in variable

Answer 10

effector

Question 11

The dynamic state of equilibrium

Answer 11

Homeostasis

Question 12

Means of homeo

Answer 12

sameness

Question 13

Reverses a change in a controlled

condition

Answer 13

Negative feedback system

Question 14

Measures of body properties that may change

in value

Answer 14

Variables

Question 15

Examples of variables

Answer 15

body temperature
heart rate
blood pressure
blood glucose levels
blood cell counts
respiratory rate

Question 16

The normal extent of increase or decrease

around a set point

Answer 16

Normal range

Question 17

Normal, or average value of a variable. Over time, body temperature fluctuates around a set point

Answer 17

Setpoint

Question 18

The cycle of events in which a condition in
the body is continually monitored,
evaluated, changed, remonitored, and
reevaluated

Answer 18

FEEDBACK SYSTEMS

Question 19

Detects changes in variable

Answer 19

Receptor

Question 20

receives receptor signal
• establishes set point
• sends a signal to the effector

Answer 20

Control center

Question 21

Directly causes a change in a variable.

Answer 21

Effector

Question 22

Strengthens or reinforce a change in one

of the body’s controlled condition

Answer 22

Positive Feedback System

Question 23

The main mechanism used homeostatic regulation

Answer 23

Negative feedback system

Question 24

A negative feedback response involves where the deviation is away from the setpoint

Answer 24

Detection

Question 25

A negative feedback response involves where is the reversal of deviation toward setpoint and normal range

Answer 25

Correction

Question 26

Mechanisms occur when the

initial stimulus further stimulates the response

Answer 26

Positive feedback