1. Sponge: Set up Cornell Notes on pg. 39 Topic: 12.1 Sensory Receptors Essential Question: 1.Explain what is meant by the statement, “Sensory receptors are the portals that link our nervous systems to our surroundings”. 2.What do all types of receptors have in common? 2.1 Atoms, Ions, and Molecules 12.1 Sensory Receptors

2. 1. Chemoreceptors: 2. Pain Receptors: 3. Thermoreceptors: 4. Mechanoreceptors: 5. Photoreceptors: Pg. 38 Homework Short Description of each (in your own words) and a picture illustrating the major function(s)

3. 3 Sensory Receptors Specialized cells or multicellular structures that collect information from the environment They are the portals that link our nervous system to the sights, sounds, smells and textures of the outside world, and help our bodies maintain homeostasis by providing information about what is happening inside the body.

4. White boards out When you hear the word, please draw a picture AND/OR write words of what comes to your mind. 4

5. Chemoreceptors Pain Receptors Thermoreceptors Mechanoreceptors Photoreceptors 5

6. Using Your Senses (4m5s) Pg. 39 Which sensory receptors go with which senses? Vision Touch Smell Hearing Taste

7. The 5 Types of Sensory Receptors Directions Each table is assigned a type of receptor Read your informational sheet Highlight the MOST important information (FUNCTIONS/Job/description/etc..) Create a (Quick!) informational poster as a group Time: 20 minutes

8. The 5 Types of Sensory Receptors Directions Each person is assigned a # 1-5 Get in your “new” groups Each “expert” describes their receptor As a group, create a (quick) tree-map of the 5- receptor types, using your informational sheet as evidence Include illustrations Time: 20 minutes

9. 5 Receptor Types Chemoreceptors Pain receptors Thermoreceptors Mechanoreceptors Photoreceptors Description Function(s) Illustrations

10. Name those Receptors!!!!!!! Be prepared for Mrs. Mc to randomly call on you to NAME and DESCRIBE those receptors Homework: Pg. 38 receptor descriptions and illustrations (signed tomorrow)

11. 11 Receptor Types Chemoreceptors (Ke-mo-receptors) respond/sensitive to changes in chemical concentrations Pain receptors or Nociceptors respond/sensitive to tissue damage Thermoreceptors respond/sensitive to changes in temperature Mechanoreceptors respond/sensitive to mechanical forces Proprioceptors: sense changes in the tensions of muscles and tendons Baroreceptors: sense changes in blood pressure Stretch receptors: in lungs; sense degree of inflation Photoreceptors in eyes; respond/sensitive to light intensity

12. What are some commonalities between the 5 types of receptors? RESPOND TO CHANGES Each receptors is sensitive to a distinct kind of environmental change and is much less sensitive to other forms of stimulation Pg. 39

13. Sensory Receptors (3m) Pg. 39