In this project, our group was asked to test the different processes of homeostasis in humans. my group was Anderson, Nick and I. We had a group of three and were asigned our own process. ours was blood pressure. Blood pressure maintains homeostasis by contracting or releasing blood vessels. This slows or quickens the blood flow through out the body.
Our group has a document of the procedure, but unfortunatly, my group did not want to share the document with me.
Content
Our group has a document of the procedure, but unfortunatly, my group did not want to share the document with me.
Content
- Scientific Method - a method in one uses observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses. In our project, we had to use the scientific method throughout to construct our test in the first place.
- Scientific Article - After our tests, we had to show the research that we had obtained in some way, we did that by a scientific article.
- Homeostasis - The state of equal balance in internal structures in an organism compensating for external influences, in our project blood pressure's tendency to lower back to natural levels after it is raised in response to stressors, this is how it maintained homeostasis.
- Independent Variable - A variable that does not change as a result of another variable, in our project that was time, or the exercise, because they did not change
- Dependent Variable - A variable that changes as a result of another variable, in our project it was blood pressure, because it changed in response to time or the exercises
- Controlled Variable - The variable that is constant or unchanged throughout the project, for our project, this was the first test of standard blood pressure in the subjects.
- Blood Pressure Cuff - a medical device consisting of a piece of rubber or similar material that is wrapped around a patient's arm and then inflated in order to measure their blood pressure. we used this to test our blood pressure.
- Feedback Loop - When outputs of a certain system are reused as inputs to that same system, forming a loop, in our project we had a negative feedback loop.
- Positive - The loop amplifies the system it is in, this multiplies it by alot. Contracting of the cervix in childbirth is an example.
- Negative - The loop inhibits and tries to slow or stop the system it is in, one of these is blood pressure, The blood vessels constrict in order to slow blood flow, this leads to lower blood flow and heart rate, once this happens the blood vessels will constrict less.
- Heart - An organ that pumps blood throughout the body, in our project, the heart controls how much blood, and pressure, is sent through the blood vessels, in our body
- Arteries - Muscular walled tubes in the circulatory system, they for carry blood throughout the body, blood pressure measures the pressure against arteries in our project
- Atrial Natriuretic Peptide - A hormone secreted from the heart that is specifically responsible for lowering blood pressure