11th Class Biology | Esophagus | Chapter 9 Human Digestive System | New Book 2025 | 1st Year Bio

In this video, we explain the topic “Esophagus” from Chapter 9: Human Digestive System of the 11th Class Biology New Book 2025 (Punjab Textbook Board). The esophagus is a muscular tube that transports food from the pharynx to the stomach. This lesson covers its structure, function, and the process of peristalsis in easy and understandable language. 🔬 Class: 1st Year (11th Class) 📘 Subject: Biology 📚 Chapter 9: Human Digestive System 🧠 Topic: Esophagus 📗 Based on New Biology Book 2025 – Punjab Board ✅ What’s Included: Simple Urdu explanation Diagrams and key terminology Function and importance in digestion Concept of peristalsis Important points for board exams 🎯 Ideal for concept clarity, board preparation, and topic-wise revision from the latest syllabus. 👉 Like, Share & Subscribe for more 1st Year Biology New Book 2025 lectures. #Esophagus #11thClassBiology #BiologyNewBook2025 #DigestiveSystem #Chapter9 #1stYearBiology #PunjabBoard #FScBiology #Peristalsis #BiologyLecture