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A&P Digestive system
| Question | Answer |
|---|---|
| What is the main function of the digestive system? | To break down large food molecules into simple nutrients using chewing, stomach acid, and enzymes |
| What are the major organs of the digestive system? | Stomach, small and large intestines, rectum, anus, and esophagus |
| What major processes occur in digestive system? | Ingestion, digestion, motility, and secretion occur in the digestive system |
| How does the digestive system help maintain homeostasis? | By breaking down food into usable nutrients and absorbing them into the bloodstream. Also by regulating fluid balance |
| What does your system need from other body systems? | The digestive system needs blood from the circulatory system, horomones from the endocrine system, and the nervous system to control muscles in the GI tract |
| What does your system provide to other body systems? | Breaks down food into nutrients and energy for all of the other systems to function properly |
| Which three body systems does your system interact with most directly? | The circulatory system, the nervous system, and the endocrine system |
| What would happen to the body if your system stopped functioning properly? | The body would quickly lose the ability to break down food, become malnourished, and other systems would begin to shut down. |
| How could a problem with your system affect other body systems? | Something as simple as gut irritation can send stress signals to the brain that will cause anxiety, sleep issues, and depression. |
| What organs or structures are especially important to your system? | The main tract organs and accessory tract organs |
| What hormones, chemicals, signals, or other substances are important to your system? | Gastrin, Cholecytoskin, GLP-1, Motilin, Histamine, Somatostatin, bile, pancreatic enzymes, etc… |
| How is your system controlled or regulated? | By neural reflexes, hormones, and distinct digestive phases. |
| How does your system respond when the body is under stress? | Because digestion is not an immediate requirement for survival, blood flow is diverted away from the digestive tract. |
| How does your system help the body maintain balance? | By making food into useable energy and regulating energy / blood sugar levels. Also hosts a major part of the immune system. |
| What is one interesting or surprising fact about your system? | the small intestine has the same surface area as a tennis court |
| What is one common misconception about your system? | Many think digestion mainly occurs in the stomach, but it actually mainly occurs in the small and large intestines |
| What would happen if one major organ in your system failed? | If the large intestine failed or became fully obstructed, sepsis and bowel perferation would occur and emergency surgery would be required to remove part of the colon, and a temporary/permanent ostomy bag would likely be needed. |
| How does your system change throughout a person's life? What are some common problems or diseases involving your system? | The digestive system typically peaks at early adulthood and then overtime it slows down and may not function as well. That is why colonoscopies are highly recommended after age 45. |
| What technology or medical tests are used to study your system? | An endoscope or colonoscope, mri and xray, colonoscopy, endoscopy, abdominal ultrasound, |
| What is something you learned about your system that you did not know before this project? | Stomach acid can dissolve metal |
| Write a short summary explaining why your body system is important to the survival of the human body. | The digestive system is important to the survival of the body because it breaks down food into energy to ru nthe rest of the body. Without the energy that the other systems in the body need, it will slowly start to shut down. |
| where does digestion start and what does this organ do? | starts in the mouth, where chewing occurs to begin breaking foods down |
| what follows the mouth, and what does it do? | the esophagus pushed chewed food into the stomach |
| what follows the esophagus and what does it do? | The stomach uses acids to churn food into a liquid |
| what follows the stomach and what does it do? | The small intestine absorbs the nutrients from the mixture |
| what follows the small intestine and what does it do? | The large intestine forms a solid stool to push to the anus |
| what ends the digestive system and what does it do? | the anus is where the stool exits the body |
| how do the digestive and circulatory system connect? | the heart uses blood that gets it's nutrients from the digestive system and pumps the blood throughout the rest of the body |
| how do the digestive and nervous system connect? | through a two way path called the gut-brain axis, anf the vagus nerve controls digestion |
| how do the digestive and endocrine system connect? | they use chemical signals called horomones to control digestion, absorb nutrients, and control blood sugar. |
Created by:
rileekay