Response, Stimulus & Homeostasis

Responding To Your Environment & Homeostasis

Multiple Choice

Which body system controls all the body's functions?

• Respiratory

• Immune

• Circulatory

• Nervous

The nervous system sends electrical signals to the rest of the body.

The endocrine system send chemical signals throughout the body.

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​Controling the Body's functions

Open Ended

All cells in the body need oxygen and nutrients to survive. However, most cells are stationary. How do they get the materials to survive?

Blood vessels from the circulatory system carry nutrients and oxygen to cells, and waste away from the cells.

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Circulatory System

Pathway

From envirnoment to your cells and back

1. Red blood cells pick up oxygen from lungs & nutrients from intestines.

2. Oxygen & nutrients is delivered to all cells

3. Red blood cells remove waste from cells.

4. Carbon dioxide to release through the lungs

5. Other waste products are filtered out by the kidneys in the excretory system as passed out of the body as urine.

Open Ended

Why the the capillaries (the smallest blood vessels) have to be so small?

Your eyes, ears, nose, taste buds and skin all collect data from your environment and send the information to your nervous system to be processed. ​

Your senses allow you to react to stimuli.

Responding to Stimuli

Stimulus (Stimuli) Any change or signal from the environment that would make the body react.

Response: The action or change in behavior that is a result of a stimulus.

Responding to Stimuli

Example

Temperature

Replace this with your body text.

​Duplicate this text as many times as you would like.

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