1. Cell to Cell Communication
Step 1:
Pathogen Enters the Body
Step 2: Macrophages: 1. 2. 3. St
Step 3: Macrophage interacts with:
Cell to Cell Communication
Example:
The Immune Response
Macrophage releases:
T-Helper releases:
Step
Step 4:
Proliferation of
T-Cells and B-Cells
Cytotoxic T Cells:
B-Cells
Plasma Cells:
Memory B Cells

2. Homeostasis and Negative Feedback Ben’s Bad Day
8:00
Restore Ben’s Blood Pressure
8:30
Restore Ben’s Body Temp.
11:50
Restore Ben’s
Blood pH
5:00
Restore Ben’s Glucose
8:30
Lower Ben’s Osmolarity
12:00
Lower Ben’s Blood Sugar
1st Response:
Stimulates:
To do what?
Senses:
1st Response:
Stimulates:
To do what?
Senses:
1st Response:
Stimulates:
To do what?
Senses:
1st Response:
Stimulates:
To do what?
Senses:
1st Response:
Stimulates:
To do what?
Senses:
1st Response:
Stimulates:
To do what?
Senses:

3. Local and Long Distance Cell Communication Example:
Ben’s Nervous and Endocrine System
Instructions:
Draw a model and label the steps in the spaces below and on the next page.
Sending a Message via the Nervous System
Sending a message via the Endocrine System

4. Sending a message via the Nervous System and the Endocrine System

5. Neurotransmitter Or Hormone
Jobs Wanted:
Neurotransmitter
Hormone
Neurotransmitter Or Hormone

6. Seeking highly qualified messenger molecule to work with a variety of target organs. Must be willing to travel long distances to remote parts of the body
Earn up to $75/hr. Homeostatic Network Inc. has immediate openings for messenger molecules. Must be able to meet with both target and non-target organs.
Send in your resume now. Need energetic messenger molecule for metabolic regulatory system. Must be willing to take orders from electrical superiors and reside within diffusing distance from work.
Looking for a rewarding career in homeostasis? Our well-established regulatory system may be just the place for you. Must have high affinity for target cell receptors.
Wanted: Messenger molecule for established homeostatic regulatory system. Must have experience working as part of a network of connected cells and be able to reach target cells rapidly.
Regulatory System needs help! Experienced messenger molecule needed to help manage homeostasis of important variable. Must be willing to work closely with a receptor to bring about dramatic changes in target cells.