Question

Name the types of lymphoid organs, lymph nodes and thymus are. Explain the
role played by them in causing immune response.​

Answer 1

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Name the types of lymph_oid organs, lymph nodes and thymus are. Explain the role played by them in causing immune response.

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Primary lymp_hoid org_ans

These organs include the bone marro_w and the thy_mus. They create special imm_une system cells called lympho_cytes. Second_ary lymp_hoid or_gans These orga_ns include the ly_mph no_des, the sple_en, the ton_sils and certain ti_ssue in various mucou_s mem_bra_ne laye_rs in the body.

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Answer 2

Explanation:

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ᴛʜᴇ ʟʏᴍᴘʜᴏɪᴅ ᴏʀɢᴀɴs ᴀʀᴇ ᴛʜᴏsᴇ ᴏʀɢᴀɴs ᴡʜᴇʀᴇ ʟʏᴍᴘʜᴏᴄʏᴛᴇs ᴏʀɪɢɪɴᴀᴛᴇ, ᴍᴀᴛᴜʀᴇ ᴀɴᴅ ᴘʀᴏʟɪғᴇʀᴀᴛᴇ ғᴏʀ ʙᴏᴅʏ’s ɪᴍᴍᴜɴᴇ sʏsᴛᴇᴍ.

ʟʏᴍᴘʜᴏɪᴅ ᴏʀɢᴀɴs ᴀʀᴇ ᴏғ ᴛᴡᴏ ᴛʏᴘᴇs:

ɪ. ᴘʀɪᴍᴀʀʏ ʟʏᴍᴘʜᴏɪᴅ ᴏʀɢᴀɴs

ᴛʜᴇ ᴏʀɢᴀɴs ᴡʜᴇʀᴇ ʟʏᴍᴘʜᴏᴄʏᴛᴇs ᴏʀɪɢɪɴᴀᴛᴇ ᴀɴᴅ ᴍᴀᴛᴜʀᴇ ᴛᴏ ʙᴇᴄᴏᴍᴇ ᴀɴᴛɪɢᴇɴ-sᴇɴsɪᴛɪᴠᴇ, ᴇ.ɢ., ʙᴏɴᴇ ᴍᴀʀʀᴏᴡ ᴀɴᴅ ᴛʜʏᴍᴜs, ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴘʀɪᴍᴀʀʏ ʟʏᴍᴘʜᴏɪᴅ ᴏʀɢᴀɴs.

$\huge\boxed{\fcolorbox{red}{grey}{Bone Marrow}}$

• ɪᴛ ɪs ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ʟʏᴍᴘʜᴏɪᴅ ᴏʀɢᴀɴ ᴡʜᴇʀᴇ ᴀʟʟ ʙʟᴏᴏᴅ ᴄᴇʟʟs ɪɴᴄʟᴜᴅɪɴɢ ʟʏᴍᴘʜᴏᴄʏᴛᴇs ᴏʀɪɢɪɴᴀᴛᴇ.

• ʙᴏɴᴇ ᴍᴀʀʀᴏᴡ ᴘʀᴏᴠɪᴅᴇs ᴛʜᴇ ᴍɪᴄʀᴏ-ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ғᴏʀ ᴛʜᴇ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴀɴᴅ ᴍᴀᴛᴜʀᴀᴛɪᴏɴ ᴏғ ʙ-ʟʏᴍᴘʜᴏᴄʏᴛᴇs.

$\huge\boxed{\fcolorbox{red}{grey}{Thymus}}$

• ᴛʜʏᴍᴜs ɪs ᴀ ʟᴏʙᴇᴅ ᴏʀɢᴀɴ ʟᴏᴄᴀᴛᴇᴅ ɴᴇᴀʀ ᴛʜᴇ ʜᴇᴀʀᴛ ᴀɴᴅ ʙᴇɴᴇᴀᴛʜ ᴛʜᴇ ʙʀᴇᴀsᴛʙᴏɴᴇ.

• ɪᴛ ɪs ǫᴜɪᴛᴇ ʟᴀʀɢᴇ ᴀᴛ ᴛʜᴇ ᴛɪᴍᴇ ᴏғ ʙɪʀᴛʜ ʙᴜᴛ ʀᴇᴅᴜᴄᴇs ᴡɪᴛʜ ᴀɢᴇ.

• ɪᴛ ᴘʀᴏᴠɪᴅᴇs ᴛʜᴇ ᴍɪᴄʀᴏ-ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ғᴏʀ ᴛʜᴇ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴀɴᴅ ᴍᴀᴛᴜʀᴀᴛɪᴏɴ ᴏғ ᴛ-ʟʏᴍᴘʜᴏᴄʏᴛᴇs.

ii. Secondary lymphoid organs

• ᴛʜᴇ ᴏʀɢᴀɴs ᴡʜᴇʀᴇ ʟʏᴍᴘʜᴏᴄʏᴛᴇs ɪɴᴛᴇʀᴀᴄᴛ ᴡɪᴛʜ ᴛʜᴇ ᴀɴᴛɪɢᴇɴ ᴀɴᴅ ᴘʀᴏʟɪғᴇʀᴀᴛᴇ ᴛᴏ ʙᴇᴄᴏᴍᴇ ᴇғғᴇᴄᴛᴏʀ ᴄᴇʟʟs, ᴇ.ɢ., sᴘʟᴇᴇɴ, ʟʏᴍᴘʜ ɴᴏᴅᴇs, ᴛᴏɴsɪʟs, ᴘᴇʏᴇʀ’s ᴘᴀᴛᴄʜᴇs ᴏғ sᴍᴀʟʟ ɪɴᴛᴇsᴛɪɴᴇ ᴀɴᴅ ᴀᴘᴘᴇɴᴅɪx ᴀʀᴇ ᴄᴀʟʟᴇᴅ sᴇᴄᴏɴᴅᴀʀʏ ʟʏᴍᴘʜᴏɪᴅ ᴏʀɢᴀɴs.

$\huge\boxed{\fcolorbox{red}{grey}{Spleen}}$

• ɪᴛ ɪs ᴀ ʟᴀʀɢᴇ ʙᴇᴀɴ-sʜᴀᴘᴇᴅ ᴏʀɢᴀɴ ᴀɴᴅ ᴄᴏɴᴛᴀɪɴs ʟʏᴍᴘʜᴏᴄʏᴛᴇs ᴀɴᴅ ᴘʜᴀɢᴏᴄʏᴛᴇs.

• ɪᴛ ᴀᴄᴛs ᴀs ᴀ ғɪʟᴛᴇʀ ᴏғ ᴛʜᴇ ʙʟᴏᴏᴅ ʙʏ ᴛʀᴀᴘᴘɪɴɢ ʙʟᴏᴏᴅ-ʙᴏʀɴᴇ ᴍɪᴄʀᴏᴏʀɢᴀɴɪsᴍs.

• ɪᴛ ʜᴀs ᴀ ʟᴀʀɢᴇ ʀᴇsᴇʀᴠᴏɪʀ ᴏғ ᴇʀʏᴛʜʀᴏᴄʏᴛᴇs.

$\huge\boxed{\fcolorbox{red}{grey}{Lymph Nodes}}$

• ᴛʜᴇsᴇ ᴀʀᴇ sᴍᴀʟʟ sᴏʟɪᴅ sᴛʀᴜᴄᴛᴜʀᴇs ᴘʀᴇsᴇɴᴛ ᴀᴛ ᴅɪғғᴇʀᴇɴᴛ ᴘᴏɪɴᴛs ᴀʟᴏɴɢ ᴛʜᴇ ʟʏᴍᴘʜᴀᴛɪᴄ sʏsᴛᴇᴍ.

• ᴛʜᴇʏ ᴛʀᴀᴘ ᴛʜᴇ ᴍɪᴄʀᴏᴏʀɢᴀɴɪsᴍs ᴏʀ ᴏᴛʜᴇʀ ᴀɴᴛɪɢᴇɴs ᴛʜᴀᴛ ᴇɴᴛᴇʀ ᴛʜᴇ ʟʏᴍᴘʜ ᴀɴᴅ ᴛɪssᴜᴇ ғʟᴜɪᴅ.

• ᴀɴᴛɪɢᴇɴs ᴛʀᴀᴘᴘᴇᴅ ɪɴ ᴛʜᴇ ʟʏᴍᴘʜ ɴᴏᴅᴇs ᴀᴄᴛɪᴠᴀᴛᴇ ᴛʜᴇ ʟʏᴍᴘʜᴏᴄʏᴛᴇs ᴀɴᴅ ᴘʀᴏᴅᴜᴄᴇ ᴀɴ ɪᴍᴍᴜɴᴇ ʀᴇsᴘᴏɴsᴇ.

$\huge\boxed{\fcolorbox{red}{grey}{MALT }}$

• ɪᴛ ɪs ғᴏʀᴍᴇᴅ ᴏғ ᴍᴀssᴇs ᴏғ ʟʏᴍᴘʜᴏɪᴅ ᴛɪssᴜᴇ ʟɪɴɪɴɢ ᴛʜᴇ ᴍᴜᴄᴏsᴀ ᴏғ ʀᴇsᴘɪʀᴀᴛᴏʀʏ, ᴅɪɢᴇsᴛɪᴠᴇ ᴀɴᴅ ᴜʀɪɴᴏɢᴇɴɪᴛᴀʟ ᴛʀᴀᴄᴛs.

• 50 ᴘᴇʀ ᴄᴇɴᴛ ᴏғ ᴛʜᴇ ʟʏᴍᴘʜᴏɪᴅ ᴛɪssᴜᴇ ɪɴ ʜᴜᴍᴀɴ ʙᴏᴅʏ ɪs ғᴏʀᴍᴇᴅ ʙʏ ᴍᴀʟᴛ.