Introduction to Physiology of Gastrointestinal System : USMLE Step 1 скачать в хорошем качестве

Introduction to Physiology of Gastrointestinal System : USMLE Step 1

📌 𝐅𝐨𝐥𝐥𝐨𝐰 𝐨𝐧 𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:-   / drgbhanuprakash   Join Our Telegram Channel HERE:- https://t.me/bhanuprakashdr Subscribe To My Mailing List:- https://linktr.ee/DrGBhanuprakash Introduction to Physiology of Gastrointestinal System : USMLE Step 1 The gastrointestinal system (GI) is a complex system that is responsible for the digestion and absorption of food, as well as the elimination of waste. The system includes organs such as the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus. Each of these organs has its own unique physiology and function. Mouth: The mouth is the entry point for food into the GI system. The teeth and tongue break down food into smaller pieces, while saliva helps to moisten and chemically break down food with enzymes like amylase. Esophagus: The esophagus is a muscular tube that connects the mouth to the stomach. It propels food downward using rhythmic contractions called peristalsis. Stomach: The stomach is a muscular sac that mixes and grinds food with gastric juice, which contains hydrochloric acid and enzymes like pepsin, that break down proteins. The stomach also releases a hormone called gastrin, which stimulates the production of gastric juice. Small Intestine: The small intestine is the primary site of nutrient absorption. It is divided into three segments: the duodenum, jejunum, and ileum. Here, enzymes from the pancreas and bile from the liver and gallbladder help further break down food, and nutrients are absorbed into the bloodstream through the intestinal wall. Large Intestine: The large intestine, also known as the colon, is responsible for absorbing water and electrolytes from indigestible food, and eliminating waste in the form of feces. The colon also houses trillions of bacteria, known as the gut microbiome, which help to break down and ferment undigested food. Rectum and Anus: The rectum stores feces until they can be eliminated through the anus, which is surrounded by muscles called the anal sphincters. #gitphysiology #physiologylectures #physiologyvideos #physiology #fmge #fmgevideos #rapidrevisionfmge #fmgejan2023 #mbbslectures #nationalexitexam #nationalexittest #neetpg #usmlepreparation #usmlestep1 #fmge #usmle #drgbhanuprakash #medicalstudents #medicalstudent #medicalcollege #neetpg2023 #usmleprep