Neuroglial Cells | Reflex Action with Example & Reflex Arc| New Biology Class 12 | Chapter15|Lec. 03

Neuroglial Cells | Reflex Action with Example & Reflex Arc | Class 12 Biology | Chapter 15 | Lec. 03 Welcome to Mubarak Ali Official! 🎓 In Lecture 03 of Chapter 15 – Human Nervous System, we continue our study of the nervous system with two important and high-yield topics: Neuroglial Cells and Reflex Action & Reflex Arc. In this lecture, concepts are explained in simple English with detailed whiteboard diagrams, making them easy to understand and useful for MDCAT, Punjab Board, UHS and other biology examinations. 🧠 Topics Covered in This Lecture: 1️⃣ Neuroglial Cells What are Neuroglial Cells (Glial Cells)? Difference between neurons and neuroglial cells Why neuroglial cells are called non-excitable cells Major functions of neuroglial cells Support and protection of neurons Nutrition and maintenance of neurons Myelination Phagocytic activity Neuroglial cells of the CNS Neuroglial cells of the PNS Oligodendrocytes Astrocytes Ependymal cells Microglial cells Schwann cells Satellite cells Their important roles in maintaining the nervous system ⚡ 2️⃣ Reflex Action What is a reflex action? Why reflex actions are rapid and involuntary Automatic response to a stimulus Everyday example of a reflex action Understanding the pathway followed during a reflex response 🔄 3️⃣ Reflex Arc A complete explanation of the reflex arc and its pathway: Receptor → Sensory Neuron → Interneuron → Motor Neuron → Effector We also discuss: Receptor Sensory neuron Interneuron Motor neuron Effector Role of the spinal cord Direction of nerve impulse during reflex action How the reflex arc produces a quick response Diagram-based understanding of the knee-jerk reflex 🎯 Why Watch This Lecture? ✅ Concept-based explanation ✅ Easy English ✅ Detailed whiteboard diagrams ✅ Important for MDCAT 2026 ✅ Useful for Class 12 Biology ✅ Punjab Board & UHS preparation ✅ High-yield concepts for MCQs ✅ Helps build a strong foundation for the Human Nervous System 📌 Chapter: 15 – Human Nervous System 📌 Lecture: 03 📌 Topic: Neuroglial Cells, Reflex Action & Reflex Arc 📌 Level: Class 12 Biology | MDCAT 2026 If you find this lecture helpful, LIKE 👍, SHARE 📲 and SUBSCRIBE 🔔 to Mubarak Ali Official for more concept-based Biology lectures and MDCAT preparation. Neuroglial cells Class 12 Biology, Neuroglial cells CNS PNS, glial cells, oligodendrocytes, astrocytes, microglia, ependymal cells, Schwann cells, satellite cells, reflex action, reflex arc, reflex arc pathway, knee jerk reflex, sensory neuron, motor neuron, interneuron, Human Nervous System Chapter 15, Class 12 Biology Chapter 15, MDCAT Biology 2026, Punjab Board Biology, UHS Biology, MDCAT 2026 Biology. #MDCAT2026 #Class12Biology #HumanNervousSystem #NeuroglialCells #ReflexAction #ReflexArc #Biology #MDCATBiology #PunjabBoard #UHS #MubarakAliOfficial