Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens ? What type of immunity do you observe in this case ?
Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens ? What type of immunity do you observe in this case ?
The mucus coating of the epithelium lining of the gut helps in trapping microbes entering the body.
Saliva in the mouth contains lysozyme which kills the pathogens. hydrochloric acid in gastric juice secreted by stomach prevent microbial growth.
All these type of immunity is innate immunity.
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The yellowish fluid "colostrum" secreted by mammary glands of mother during the initial days of lactation has abundant antibodies ($lgA$) to protect the infant. This type of immunity is called as
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- [NEET 2020]
Given below are two statements :
Statement $I$ : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement $II$ : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.
In the light of above statements, choose the most appropriate answer from the options given below :
Given below are two statements :
Statement $I$ : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement $II$ : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.
In the light of above statements, choose the most appropriate answer from the options given below :
- [NEET 2024]
Spleen is
Spleen is
- [AIPMT 2001]
"Graveyard of $RBCs$''
"Graveyard of $RBCs$''