Uploaded June 2026 | Updated September 2026, 3 weeks ago

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How does our body stop germs from entering even before they cause an infection? 🦠🛡️

In this short, learn about Physical Barriers and Physiological Barriers, the first line of defense in our innate immune system.

Topics Covered:
Physical Barriers
Skin & Body Hair
Cilia Protection
Respiratory Tract Defense
Gastrointestinal Tract
Physiological Barriers
Saliva, Tears & Lysozyme
Innate Immunity

Perfect for NEET, CBSE, NCERT, Class 12 Biology & Medical Aspirants.

#InnateImmunity #PhysicalBarriers #PhysiologicalBarriers #BiologyShorts #NEET #NCERT #ImmuneSystem #ScienceShorts