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Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
- a)Monocytes
- b)Epithelium of Urogenital tract
- c)Tears
- d)Skin
Correct answer is option 'C'. Can you explain this answer?
?
Most Upvoted Answer
Which one of the following acts as a physiological barrier to the entr...
Understanding Physiological Barriers to Microorganisms
The human body has several mechanisms to prevent the entry of microorganisms, and the correct answer to the question is indeed "C) Tears." Here’s a detailed explanation:
Tears as a Physiological Barrier
- Role of Tears: Tears are not just for keeping the eyes moist; they play a crucial role in protecting the eyes from pathogens.
- Antimicrobial Properties: Tears contain lysozyme, an enzyme that breaks down bacterial cell walls, effectively killing bacteria.
- Flushing Effect: The act of tearing helps wash away debris and microorganisms from the surface of the eye.
- pH and Salt Content: The natural pH and saline content in tears create an inhospitable environment for many harmful microorganisms.
Why Other Options are Less Effective
- Monocytes:
- These are immune cells that respond to infections, but they act after a pathogen has entered the body. They are not a physical barrier.
- Epithelium of Urogenital Tract:
- While it does provide some level of protection, it is primarily a structural barrier rather than a physiological one. It does not actively neutralize pathogens like tears do.
- Skin:
- The skin is a significant physical barrier to microorganisms, but it does not have the same physiological properties as tears in actively combating pathogens.
Conclusion
In conclusion, while all listed options contribute to the overall defense against pathogens, tears are uniquely effective due to their direct physiological role in safeguarding the eyes from microbial invasion.
The human body has several mechanisms to prevent the entry of microorganisms, and the correct answer to the question is indeed "C) Tears." Here’s a detailed explanation:
Tears as a Physiological Barrier
- Role of Tears: Tears are not just for keeping the eyes moist; they play a crucial role in protecting the eyes from pathogens.
- Antimicrobial Properties: Tears contain lysozyme, an enzyme that breaks down bacterial cell walls, effectively killing bacteria.
- Flushing Effect: The act of tearing helps wash away debris and microorganisms from the surface of the eye.
- pH and Salt Content: The natural pH and saline content in tears create an inhospitable environment for many harmful microorganisms.
Why Other Options are Less Effective
- Monocytes:
- These are immune cells that respond to infections, but they act after a pathogen has entered the body. They are not a physical barrier.
- Epithelium of Urogenital Tract:
- While it does provide some level of protection, it is primarily a structural barrier rather than a physiological one. It does not actively neutralize pathogens like tears do.
- Skin:
- The skin is a significant physical barrier to microorganisms, but it does not have the same physiological properties as tears in actively combating pathogens.
Conclusion
In conclusion, while all listed options contribute to the overall defense against pathogens, tears are uniquely effective due to their direct physiological role in safeguarding the eyes from microbial invasion.
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Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?a)Monocytesb)Epithelium of Urogenital tractc)Tearsd)SkinCorrect answer is option 'C'. Can you explain this answer?? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?a)Monocytesb)Epithelium of Urogenital tractc)Tearsd)SkinCorrect answer is option 'C'. Can you explain this answer?? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?a)Monocytesb)Epithelium of Urogenital tractc)Tearsd)SkinCorrect answer is option 'C'. Can you explain this answer??.
Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?a)Monocytesb)Epithelium of Urogenital tractc)Tearsd)SkinCorrect answer is option 'C'. Can you explain this answer?? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?a)Monocytesb)Epithelium of Urogenital tractc)Tearsd)SkinCorrect answer is option 'C'. Can you explain this answer?? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?a)Monocytesb)Epithelium of Urogenital tractc)Tearsd)SkinCorrect answer is option 'C'. Can you explain this answer??.
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