Homeostasis

Question 1

The condition in which the body’s internal environment remains relatively constant within physiological limits.

Answer 1

Homeostasis

Question 2

_______ _________ occurs when a response to a stimulus reverses or eliminates the change in a controlled condition.

Answer 2

Negative Feedback

Question 3

Name the process the 5 processes in homeostasis.

Answer 3

Stimulus, Receptor, Control centre, Effector, Negative feed back.

Question 4

What is Stimulus?

Answer 4

The detectable change

Question 5

What does the Receptor do in homeostasis?

Answer 5

Detect changes in a controlled condition, send information to the control centre

Question 6

What does the Control centre do in homeostasis?

Answer 6

Evaluates input received from receptors and generates output commands, Acts via nerve impulses or hormones.

Question 7

What does the Effectors do in homeostasis?

Answer 7

Receives output from control centre, produces a response.

Question 8

What does the Negative feedback do in homeostasis?

Answer 8

It is when a response to a stimulus reverses or eliminates the change in a controlled condition.

Question 9

Give an example of homeostasis (blood pressure)

Answer 9

Stimulus: increase in blood pressure
Receptor: Baroreceptors (pressure sensitive receptors) detect higher BP.
Control Centre: Nerve impulses are sent to the brain for interpretation.
Effector: Responses sent via nerve impulses to heart decrease heart rate and BP drops.
Negative Feedback: the decrease in BP reverces the stimulus.