PRELIM 05 - Homeostasis

Question 1

The existence and maintenance of a relatively constant environment within the body

Answer 1

Homeostasis

Question 2

Term that means ‘the same’

Answer 2

Homeo

Question 3

Term that means ‘to stop’

Answer 3

Stasis

Question 4

Measure of body properties that may change in value

Answer 4

Variables

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

Answer 6

Set point

Question 7

Responds to changes in the environment; sends information to the control center

Answer 7

Receptor

Question 8

Determines set point, analyzes information, and determines appropriate response

Answer 8

Control center

Question 9

Provides a means for response to the stimulus

Answer 9

Effector

Question 10

Is the main mechanism used in homeostatic regulation; involves deviation away from set point

Answer 10

Negative feedback

Question 11

Example of negative feedback

Answer 11

Blood glucose level

Question 12

Occurs when the initial stimulus further stimulates the response

Answer 12

Positive feedback

Question 13

4 examples of positive feedback

Answer 13

Childbirth, Lactation, Ovulation, Blood clotting

Question 14

Stretching of uterine walls causes contractions that further stretch the walls

Answer 14

Childbirth

Question 15

The child feeding stimulates milk production which causes further feeding

Answer 15

Lactation

Question 16

The dominant follicle releases estrogen which stimulates LH and FSH release to promote further follicular growth

Answer 16

Ovulation

Question 17

Platelets release clotting factors which cause more platelets to aggregate at the site of injury

Answer 17

Blood clotting

Question 18

A disturbance in homeostasis resulting in disease

Answer 18

Homeostatic imbalance