Скачать или смотреть Second Line of Defence | Immunity | For MDCAT and Borad Exams | Class 11th Biology | LEC 03

✅ Description

Welcome to today's lecture on the Second Line of Defence, a key part of the human immune system. This video is ideal for FSc Biology students (11th/12th class) and those preparing for MDCAT.

In this lecture, I explain:
🔹 Phagocytic Cells – Neutrophils, Macrophages, Monocytes
🔹 Natural Killer (NK) Cells – Role in detecting infected cells
🔹 Complement System – Activation pathways and effects
🔹 Interferons – Types and their function in viral infections

👉 This lecture is explained in a clear, conceptual way using diagrams and examples, perfect for both board exams and entry tests.

📌 Don't forget to Like, Subscribe, and Share if you found it helpful!

📚 Topics Covered:

Innate immunity

Second line of defence

Cellular and chemical barriers

Non-specific immunity


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✅ Tags

second line of defence, immune system, phagocytic cells, natural killer cells, nk cells, complement system, interferons, types of interferons, fsc biology, class 12 biology, mdcat biology, mdcat immune system, immunity, biology lecture, immune response, innate immunity, second line of defense, biology second year, fsc part 2 biology

✅ Hashtags

#SecondLineOfDefence #FSCBiology #MDCAT