This video is answering the question of what do the small intestines do.

Lesson on Cholera (Vibrio Cholerae) transmission, pathophysiology (ex. cholera toxin mechanism), signs and symptoms, diagnosis, treatment and prevention. Vibrio cholerae is a bacterium that can cause a gastrointestinal illness that is...

Weird Symptoms of Celiac Disease | Atypical Clinical Features



Celiac disease is a gastrointestinal condition involving autoimmune destruction of the absorptive surface of the small intestine, which is triggered by the...

Trichinosis (Pork Parasite) | Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Trichinosis (also known as trichinellosis), is an infection with a parasitic nematode of the genus Trichinella that can infect humans...

Low Phosphate (Hypophosphatemia) | Causes, Symptoms, Treatment | & Role of Phosphate, Dietary Sources



Lesson on low phosphate (Hypophosphatemia), purpose of phosphate, dietary sources of phosphate, causes of low phosphate,...

In this video, Jonathan from the Institute of Human Anatomy discusses the anatomy of the gallbladder, and answers some of the most common gallbladder questions: Where is the gallbladder? What does the gallbladder do? What are gallstones?...

Tropical Sprue | Causes, Pathogenesis, Signs & Symptoms, Diagnosis, Treatment



Tropical Sprue is a gastrointestinal condition of unknown etiology (although likely infectious in nature). It involves malabsorption of nutrients...

Weird Symptoms of Diverticulitis | Atypical Clinical Features of Diverticulitis



Diverticulitis is a gastrointestinal condition involving inflammation of diverticula, which are bulges in the large intestinal wall due to...

Water is a simple molecule, so our body does not have to break it into smaller, simpler molecules to digest it. In fact, water molecules are so small that they have no problem diffusing through the cell membrane. This cell membrane...

In this lecture, I first deal with the functions of the digestive system. We then take a journey through the digestive system by following your food from your mouth all the way through your body and even through the elimination of...

Lipid Digestion & Absorption into the Lymphatic System

B12 (cobalamin) is a water soluble B vitamin that requires special handling upon ingesting and subsequent absorption and transport. Here, we discuss the general pathway.

Explain the process of digestion of each food component. Describe how and where various components of food are absorbed.

Tapeworm Infection from Cats & Dogs (Dipylidiasis) | Transmission, Symptoms, Diagnosis, Treatment, Prevention



Dipylidiasis is an infection by the tapeworm Dipylidium caninum, which is a tapeworm that primarily infects cats and...

Meckel Diverticulum (Most Common Congenital Intestinal Anomaly) | Causes, Symptoms & Complications, Diagnosis, Treatment



Meckel Diverticulum is the most common congenital anomaly of the gastrointestinal tract, occurring in...

Gastroparesis Signs & Symptoms (ex. Nausea, Weight Loss)



Gastroparesis is a gastrointestinal disorder, essentially “stomach paralysis” that is due to delayed emptying of stomach contents into the small intestine. This delayed...

Disaccharides Sucrose

This video explains the digestive system, starting from the esophagus to the large intestine. They discuss the functions of each part of the system and how it helps break down food and absorb nutrients. The teacher also shows real-life...

This tutorial is an overview of the digestive (GI) tract.

Histological features of the duodenum.

This lesson details the complex process of gastrointestinal absorption of vitamin b12 through utilization of haptocorrin and intrinsic factor, the process of transportation of vitamin b12 through our body via transcobalamin and...

Main organs of the digestive system

Nerves of the small intestine seen from an anterior view of the abdomen.

We've already learn a lot about the digestive system, which is comprised of the gastrointestinal tract and some accessory organs. But just as we've done for the heart and the brain, let's get a better sense of what this system really...