Organismal Biology: Feedback Mechanisms

Question 1

physiological regulation system in a
living body that works to return the body to its normal internal state,

Answer 1

feedback mechanism

Question 2

perfect physiological balance

Answer 2

homeostasis.

Question 3

Homeo means

Answer 3

similar

Question 4

stasis means

Answer 4

steady

Question 5

Responses to the changes in the
internal and external
environment.

Answer 5

homeostasis.

Question 6

Homeostasis is a self-regulating process
by which biological systems
tend to maintain stability
while adjusting to
conditions that are optimal
for _______

Answer 6

survival

Question 7

Collect the information relative to the
environment and detect the stimulus.

Answer 7

RECEPTORS/SENSORS:

Question 8

Receives data of stimulus, interprets and process
the message.

Answer 8

CONTROL CENTER:

Question 9

Delivers messages to target organs via
nerve impulses and hormones.

Answer 9

COMMUNICATION SYSTEM:

Question 10

Response to changes – organs.

Answer 10

TARGETS/EFFECTORS:

Question 11

control center and comparator

Answer 11

hypothalamus

Question 12

Signals can be sent via

Answer 12

nerve pathways and hormones

Question 13

ENHANCES the original stimulus to
ACCELERATE activity.

Answer 13

positive feedback

Question 14

A negative feedback mechanisms
DECREASES the intensity of the
stimulus or eliminates it.

Answer 14

Negative
Feedback
Mechanisms

Question 15

work continuously to maintain
stable conditions in the human body.

Answer 15

Homeostatic mechanisms

Question 16

when the homeostatic mechanisms fail.

Answer 16

homeostatic
imbalance