1. Sponge: Set up Cornell Notes on pg. 37 Topic: 12
Sponge: Set up Cornell Notes on pg. 37 Topic: 12.1 Sensory Receptors Essential Question: Compare and Contrast the different types of receptors. Text: 442
12.1 Sensory Receptors
2.1 Atoms, Ions, and Molecules
Compare and Contrast the different types of receptors.

2. OBJECTIVE
SWBAT differentiate the differences between the different types of receptors by using information from the powerpoint and activity

3. Sensory Receptors
Sensory Receptors: specialized cells or multicellular structures that collect information from the environment
Link our nervous system to the outside environment

4. Let’s do the first one together!
Chemoreceptors:
Chemo – Chemical
Chemoreceptor: Receptor that responds to chemical signals
Taste
Smell

5. Now it’s your turn!
As a table group, work on the Intro to Receptors WS.
~20min

6. Mechanoreceptors Mechano: Mechanical
Mechanoreceptors: Receptors that respond to Mechanical forces (deformed receptors)
Touch/hearing
Proprioceptors: Sense changes in the tension of muscles and tendons
Baroceptors: Sense changes in blood pressure
Stretch Receptors: Sense changes in inflation (lungs)

7. Nociceptors Noci: Injury/Harm/Pain
Nociceptor: Receptors that respond to Injury/Harm/Pain
Ex: Mechanical, thermal, chemical, electrical energy
Touch

8. Photoreceptor Photo: Light
Photoreceptor: Receptors that responds to light intensity
Vision

9. Thermoreceptor Thermo: Temperature
Thermoreceptor: Receptors that respond to temperature
Touch

10. Table Talk! Discuss with your table:
What is the commonality between all 5 receptor types?
THEY ALL RESPOND TO CHANGE

11. Sensory Receptors
Each receptor is sensitive to a DISTINCT kind of environmental CHANGE and less sensitive to other.
Ex: Thermoreceptors respond to temperature, not light
BUT…….on certain occasions, they may respond to other stimuli if the stimulus is strong enough
Ex: Nociceptors can be stimulated from intense heat or intense cold.
Ex: Seeing “stars” from sharp blow to the head

12. Let’s go over the back page of the Worksheet