@SmartDoctor1
=====================
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages: the cephalic phase, the gastric phase, and the intestinal phase.
The first stage, the cephalic phase of digestion, begins with secretions from gastric glands in response to the sight and smell of food. This stage includes the mechanical breakdown of food by chewing, and the chemical breakdown by digestive enzymes, that takes place in the mouth. Saliva contains the digestive enzymes amylase, and lingual lipase, secreted by the salivary and serous glands on the tongue. Chewing, in which the food is mixed with saliva, begins the mechanical process of digestion. This produces a bolus which is swallowed down the esophagus to enter the stomach.
The second stage of digestion begins in the stomach with the gastric phase. Here the food is further broken down by mixing with gastric acid until it passes into the duodenum, the first part of the small intestine.
The third stage begins in the duodenum with the intestinal phase, where partially digested food is mixed with a number of enzymes produced by the pancreas. Digestion is helped by the chewing of food carried out by the muscles of mastication, the tongue, and the teeth, and also by the contractions of peristalsis, and segmentation. Gastric acid, and the production of mucus in the stomach, are essential for the continuation of digestion.
Peristalsis is the rhythmic contraction of muscles that begins in the esophagus and continues along the wall of the stomach and the rest of the gastrointestinal tract. This initially results in the production of chyme which when fully broken down in the small intestine is absorbed as chyle into the lymphatic system. Most of the digestion of food takes place in the small intestine. Water and some minerals are reabsorbed back into the blood in the colon of the large intestine. The waste products of digestion (feces) are defecated from the rectum via the anus.
=====================
Follow us on the @SmartDoctor1 digital platform
=====================
▶Facebook▶
▶Instagram▶
=============
Smart Doctor 👨⚕️
@SmartDoctor1/youtube
=============
#digestivesystem #system #digestive #intestine
#mouth #esophagus #stomach #smallintestine
#largeintestine #pancreas #liver #gallbladdercancer
=============
#eyes #brain
#uterus
#fetal
#tongue #muscles #muscle
#skull #humanskull
#fetaldevelopment #fetal #fetalmovement
#fetalecho #heart #baby
#brain #shorts #viral
#the_voice #thevoice #voice #voiceover
#SmartDoctor1
#smartdoctor
#Smart_Doctor
#brain #shorts #viral #baby
#the_voice #thevoice #voice #voiceover
#oxygen #blood #body
#pregnancy #medicina #anatomy #doctor #america #माहवारी #月経 #임신 #妊娠 #pregnant #gravidez #information #pronunciation #speak #speech #read
1 view
24
6
3 weeks ago 00:27:04 4
Lavender & Where’s Daddy: How Israel Used AI to Form Kill Lists & Bomb Palestinians in Their Homes
3 weeks ago 00:07:16 1
“Empty Words“: Kenneth Roth on Biden’s Criticism of Israel While U.S. Keeps Weapons Flowing
3 weeks ago 01:59:53 1
JUST IN: HHS Whistleblower Testifies Before Lawmakers On Exploitation Of Unaccompanied Children
3 weeks ago 00:12:52 1
Earth Breaks New Records for Greenhouse Gases in Atmosphere as Climate Crisis Intensifies
3 weeks ago 00:27:47 1
“Killing People Around the Clock“: Palestinians Mark Six Months of War on Gaza
3 weeks ago 00:02:39 1
Honest Government Ad | Israel & Gaza 🇮🇱 🇵🇸
3 weeks ago 00:15:28 1
Thanatopsis-Fidelis Ad Mortem (GOREGRIND)
3 weeks ago 00:00:12 1
If Soccer Added Robots? 🤣 Mocap Test | NOT Real | Incredible Wonder Studio Ai #shorts
3 weeks ago 00:13:39 1
I Could Not Stay Silent: Annelle Sheline Resigns from State Dept. over U.S. Gaza Policy
4 weeks ago 00:00:28 15
Robotization: The Last Human | Teaser “Via ad interitum“
4 weeks ago 00:00:07 1
In the Near Future? If Soccer Added Robots 🤣 Mocap Test | NOT Real | Wonder Studio Ai #shorts
4 weeks ago 00:00:16 1
Anatomy of Internal Organs and the Heart 🫀
4 weeks ago 00:03:22 1
How does your body turns food into the poop? Human digestive system(Animation)|Dandelion Team
4 weeks ago 00:14:58 1
Road to Famine: Israeli Law Prof. Neve Gordon on Israel’s History of Weaponizing Food Access in Gaza
4 weeks ago 00:04:57 1
How your digestive system works - Emma Bryce
4 weeks ago 00:12:16 1
development of the placenta-labor and delivery - birth-embryology-placental maternal side formation
4 weeks ago 00:03:59 1
Calva Louise - Human Becoming
1 month ago 00:14:22 1
Inside a Family Home Built Around a 12,000-Year-Old Boulder | Unique Spaces | Architectural Digest
1 month ago 00:04:38 1
How does your body turn food into poop? Human digestive system
1 month ago 00:08:01 1
Drink apples with garlic! The secret that no one will tell you! thank me later, 🔝 weight loss drink
1 month ago 00:20:40 1
Ex-U.N. Official Craig Mokhiber: Israel Must Be Held Accountable for Violating Ceasefire Resolution
1 month ago 00:00:53 1
“This is the worst of what humanity is capable of“: Dr. Tanya Haj-Hassan describes Gaza today
1 month ago 00:17:36 1
Pediatrician Dr. Tanya Haj-Hassan on What She Saw While Working in Gaza Hospital