Let’s Apply

Keeping a stable environment requires constant adjustments. Determine how

our organ systems through coordination with the nervous system help the

body maintain homeostasis by matching each given stimulus in Column A to

the body’s responses in Column B. Write the letter of you answers on the space

provided before the number.

COLUMN A

COLUMN B

____________1. Thermoreceptors and

mechanoreceptors in your skin sense

changes in temperature and pressure

respectively

A. Pancreas releases insulin to

absorb sugar from the blood.

____________2. You entered the room

where there is low light.

B. Nerves make muscles contract

which moves the bones of the

skeleton.

____________3. Conditions are too warm

and your body temperature rises

C. Pupils dilate optimizing the

amount of light entering the eye

for best vision.

____________4. The temperature in your

room drops to 10°C

D. Nerves trigger sweat glands to

release fluid that evaporates and

cools the skin.

____________5. A high concentration of

carbon dioxide in your blood triggers

faster breathing

E. The kidneys produce more

concentrated urine, so less water

is lost from the body.

____________6. A low level of water from

your blood triggers retention of water by

the kidneys.

F. The lungs exhale more

frequently, which removes

carbon dioxide from the body

more quickly.

____________7. There is a high

concentration of sugar in your blood.

G. Blood vessels constrict to

conserve heat. The nervous

system triggers your muscles to

shiver to generate heat and

warm your body.​