7.2 GI Phys and GI patho pt1 | BSN Fall 2025

About this video

• Video Title: 7.2 GI Phys and GI patho pt1 | BSN Fall 2025
• Channel: Bryant Pham
• Speakers: Bryant Pham
• Duration: 2:56:02

Overview

This video provides an overview of the gastrointestinal (GI) system, covering its anatomy, physiology, and common pathologies. The speaker emphasizes a study guide approach, suggesting a table format to organize information by organ, its secretions/enzymes, what is digested/absorbed, and associated pathologies. The lecture details the functions of various GI organs, from the mouth to the large intestine, including accessory organs like the liver, gallbladder, and pancreas, and touches on common GI issues such as hernias and motility disorders.

Key takeaways

• Study Guide Strategy: The speaker recommends creating a table to organize information about each GI organ, including enzymes, secretions, digestion/absorption processes, and pathologies, to aid in studying.
• GI Tract as External: The GI tract is technically considered external to the body, as it is a continuous tube from the mouth to the anus, both of which are exposed to the environment.
• Stomach's Primary Function: The stomach's main role is protein digestion, utilizing hydrochloric acid and pepsin. It does not significantly break down carbohydrates or fats.
• Accessory Organs: The liver, gallbladder, and pancreas play crucial roles in digestion by producing bile and enzymes that break down all macronutrients, with their secretions entering the duodenum.
• Common GI Pathologies: The video introduces various GI pathologies, including GERD, hernias, pyloric stenosis, dumping syndrome, and different types of diarrhea, explaining their causes and symptoms.