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Intestines
The intestines aid in the digestion and absorption of food and stretch from the stomach to the anus.
4,885 Questions
What is the function of vagus nerve?
sympathetic fuction and the motor function mainly on the production of voice. http://www.answers.com/topic/vagus-nerve
What do the kidneys look like?
The kidneys have an oval shape that curves slightly inwards in the middle. This central space connects renal arteries and veins to the organ.
Number of hours NPO for conscious sedation procedures eg colonoscopy?
As a consultant for a conscious sedation consulting firm, I receive this question often. The gold standard set by the American Society of Anesthesiologists is as follows: Summary of American Society of Anesthesiologists Preprocedure Fasting Guidelines2* Ingested Material Minimum Fasting Period†Clear liquids‡ 2 h Breast milk 4 h Infant formula 6 h Nonhuman milk§ 6 h Light meal 6 h * These recommendations apply to healthy patients who are undergoing elective procedures. They are not intended for women in labor. Following the Guidelines does not guarantee a complete gastric emptying has occurred. †The fasting periods apply to all ages. ‡ Examples of clear liquids include water, fruit juices without pulp, carbonated beverages, clear tea, and black coffee. § Since nonhuman milk is similar to solids in gastric emptying time, the amount ingested must be considered when determining an appropriate fasting period. A light meal typically consists of toast and clear liquids. Meals that include fried or fatty foods or meat may prolong gastric emptying time. Both the amount and type of foods ingested must be considered when determining an appropriate fasting period. PRACTICE GUIDELINES 1007 Anesthesiology, V 96, No 4, Apr 2002
Digestion in the small intestine?
Digestion and absorption. Yummy! The length of the the small intestine allows for more absorption time and its epithelium has specialized villi and on the villi has microvilli adding to its absorption ability. Although digestion does begin in the oral cavity turning the food we eat into a bolus, and the stomach does it's job by turning the bolus into chyme, most of the digestion and absorption takes place in the small intestine. The stomach will squeeze out chyme, in small quantities at a time, into the first part of the small intestine: the duodenum, which is where most of the digestion will take place thanks to more secretions by the gallbladder and pancreas. Then it gets moved along into the jejunum of the small intestine; more absorption along the way, and finally the to the last part of the small intestine, the ileum. At this point everything will have been digested and most of the nutrients will have been absorbed, and now off to the large intestine for its next journey out into the world...life is good!
How is cancer of the intestine treated?
Intestinal cancer aka small intestine cancer is treated in various usual ways including surgical removal, radiation and chemotherapy. Alternative treatments include a combination of zinc, selenium and raw thymus gland, each taken the same day but not necessarily at the same time. Intestinal cancer and colon cancer are different in that they effect different parts of the intestinal tract.
How do you become a cytopathologist?
In order to become a cytopathologist you must first go to college and then attend medical school. After completing medical school you must complete a residency program that specializes in Cytopathology.
Can your large and small intestine wrap around the world?
.No, if you put the large and small intestine together it only stretches out to about 28ft. long. But, I think you may referring to your cells if you put all of your cells in a long line side to side they go around the world a few times.
no.
What are the enzymes produced in the small intestine?
The small intestine is traditionally divided into three anatomic sections defined from their distance from the pyloric sphincter:
- duodenum: It is the first portion of the small bowel that is itself divided into four distinct anatomic positions called first, second, third, and fourth sections of duodenum. Duodenum is the only portion of the small bowel that is partially retroperitoneal, and peritoneal. Duodenum is a secretary portion of the small intestine.
- jejunum: This is the section of the small intestine that begins immediately from the insertion point of the ligament of Treitz, and is the longest of the three sections. Jejunum is an absorptive surface.
- ileum This is the terminal portion of the small intestine and as such has a limited but vital role in absorption. Vitamin B12 and bile are absorbed at this portion.
The following enzymes/hormones are produced in the duodenum:
- secretin: This is an endocrine hormone produced by the duodenal "S cells" in response to the acidity of the gastric chyme.
- Cholecystokinin (CCK): This is not by definition a hormone; there is new evidence suggesting that CCK works by a very complex neuronal bi-directional pathway. Regardless of its pathway, its eventual role is to increase secretion of acinar cells and increased production of pancreatic juice. CCK also increases gallbladder contraction, causing release of pre-stored bile into the cystic duct, and eventually into the common bile duct and via the ampulla of Vater into the second anatomic position of the duodenum. CCK also decreases the tone of the sphincter of Oddi, which is the sphincter that regulates flow through the ampula of Vater. CCK also decreases gastric activity and decreases gastric emptying, thereby giving more time to the pancreatic juices to neutralize the acidity of the gastric chyme.
- Gastric inhibitory peptide (GIP): This peptide decreases gastric motility and is produced by duodenal mucosal cells.
- motilin: This substance increases gastro-intestinal motility via specialized receptors called "motilin receptors."
- somatostatin: This hormone is produced by duodenal mucosa and also by the delta cells of the pancreas. Its main function is to inhibit a variety of secretory mechanisms.
Throughout the lining of the small intestine there are numerous "brush border" enzymes whose function is to further cleave the already-broken-down products of digestion into absorbable particles. Some of these enzymes include:
- Sucrase
- Lactase: This is a significant brush border enzyme in that a majority of Middleastern and Asian population lack this enzyme and also this enzyme decreases with age, and as such lactose intolerance is often a common abdominal complaint in the Middleastern, Asian, and older population, manifesting with bloating, abdominal pain, and osmotic diarrhea.
- Maltase
- Other disaccharidases
Colonic angioectasia causes bleeding in the lower gastrointestinal tract. This presence is often associated with liver cirrhosis, chronic renal failure, and valvular heart disease.
What does the small intestine connect from and to?
The small intestine connects the stomach and the large intestine. It is the site of completion of digestion and most absorption.
What are the hormones secreted from small intestine during digestion process?
The secrete gastric juice and the digestive hormones are secreted from the small intestines during the digestion process.
What is a stomach secretion needed for absorption of what vitamin from the small intestine?
Gastric acid
Does food reach the small intestine before it reaches the stomach?
No. Food goes to the stomach and then to the small intestine.
The Pancreas is a endocrine gland that secretes insulin (amongst other hormones).
What kind of worms are small white ones in your dog's stool that cause them to itch?
It might be pin worms.
What would cause pain in the right side of the abdomen after riding in a car for 1.5 hours?
Patient right or your right? Age? Sex? Past medical history? Is this a healthy child or a out of shape geriatric? dehydration cramps could cause this, so could appendicitis, so more information is required. For example is the abdomen ridged, tender, is rebound tenderness present, distended, or is a pulsating mass felt? As you can see many things could be wrong.-AB, US Army 68W34
