With Joey Walkup and Sophia Moreno
Intro
In this project we investigated a specific way our body maintained homeostasis and use the scientific method to prove it worked. The process we chose was the regulation of our body temperature. We came up with an experiment that tested how we maintain a similar body temperature and communicated our results in a write up as well as a poster.
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Content
Homeostasis: tendency to maintain internal stability in an organism in response to changes in its environment (Negative Feedback)
Negative Feedback Loop: stimulus causes an opposite output to maintain an ideal level of whatever is being regulate
Positive Feedback Loop: stimulus causes increase in magnitude of the perturbation
Scientific Method:
1. Make an Observation and Ask a Question
2. Research the Question and Make a Hypothesis
3. Devise and Perform an Experiment
4. Analyze Data and Form a Conclusion (Revisit Hypothesis)
5. Share your Findings
Body Temperature Regulation- When the part of the brain called the hypothalamus senses that your body temperature is too far from normal (98 degrees Fahrenheit/37 degrees Celsius), it sends out signals to your muscles, organs, glands, and nervous system to return internal temperatures to normal. They respond in different ways depending on if the body is too cold or too hot.
When too cold:
Vasoconstriction: The blood vessels under your skin become narrower, decreasing blood flow to the skin, keeping the heat close to the warm inner body.
Thermogenesis: Your muscles, organs, and brain all produce heat in a variety of ways. For instance, your muscles shiver to create friction.
Hormonal Thermogenesis: Your thyroid gland releases hormones to increase your metabolism. This increases the energy your body creates and the amount of heat it produces.
When too hot:
Sweating: Your sweat glands produce sweat, which carries heat with it as it evaporates, cooling your skin. This helps to lower your internal temperature.
Vasodilatation: The blood vessels under your skin get wider, increasing blood flow to the skin where it is cooler. This allows the heat to escape through heat radiation.
Negative Feedback Loop: stimulus causes an opposite output to maintain an ideal level of whatever is being regulate
Positive Feedback Loop: stimulus causes increase in magnitude of the perturbation
Scientific Method:
1. Make an Observation and Ask a Question
2. Research the Question and Make a Hypothesis
3. Devise and Perform an Experiment
4. Analyze Data and Form a Conclusion (Revisit Hypothesis)
5. Share your Findings
Body Temperature Regulation- When the part of the brain called the hypothalamus senses that your body temperature is too far from normal (98 degrees Fahrenheit/37 degrees Celsius), it sends out signals to your muscles, organs, glands, and nervous system to return internal temperatures to normal. They respond in different ways depending on if the body is too cold or too hot.
When too cold:
Vasoconstriction: The blood vessels under your skin become narrower, decreasing blood flow to the skin, keeping the heat close to the warm inner body.
Thermogenesis: Your muscles, organs, and brain all produce heat in a variety of ways. For instance, your muscles shiver to create friction.
Hormonal Thermogenesis: Your thyroid gland releases hormones to increase your metabolism. This increases the energy your body creates and the amount of heat it produces.
When too hot:
Sweating: Your sweat glands produce sweat, which carries heat with it as it evaporates, cooling your skin. This helps to lower your internal temperature.
Vasodilatation: The blood vessels under your skin get wider, increasing blood flow to the skin where it is cooler. This allows the heat to escape through heat radiation.
Reflection
This project was not really interesting to me so I got off task quite a bit. I should have stayed focused more and managed my time better. I also should have been a better leader in my group, keeping the whole team on task.
However, I do feel like I contributed a lot to the final product. I helped out a lot throughout the lab and helped my teammates when they needed it.
Overall I wasn't really happy with this project because we knew what the result was going to be before we even started, so I was not very interested in making the experiment.
However, I do feel like I contributed a lot to the final product. I helped out a lot throughout the lab and helped my teammates when they needed it.
Overall I wasn't really happy with this project because we knew what the result was going to be before we even started, so I was not very interested in making the experiment.