Thymus vs Thyroid
caj pas yog cov kabmob uas tso cov tshuaj nkag mus rau hauv cov hlab ntsha lossis hauv cov kab noj hniav hauv lub cev. Cov qog loj tuaj yeem muab faib ua ob pawg; endocrine thiab exocrine qog. (Nyeem qhov txawv ntawm endocrine thiab exocrine qog). Cov qog endocrine yog cov qog uas tso cov tshuaj hu ua hormone ncaj qha rau hauv cov hlab ntsha. Ob leeg thymus thiab thyroid tsim ntau yam tshuaj hormones, tab sis koom nrog cov kab ke sib cais vim lawv txoj haujlwm ua haujlwm hauv cov kab mob lom. Li no, muaj ntau qhov sib txawv ntawm ob lub cev no.
Thymus
Thymus yog ib lub cev tshwj xeeb ntawm lub cev tiv thaiv kab mob. Nws yog tsim los ntawm ob lobes zoo tib yam thiab nyob rau hauv anatomically nyob rau hauv lub anterior superior mediastinum, nyob rau hauv pem hauv ntej ntawm lub plawv. Cov khoom tseem ceeb ntawm thymus yog cov lymphoid thymocytes thiab stromal hlwb. Thymus yog lub luag haujlwm rau muab qhov chaw inductive rau kev loj hlob ntawm T-lymphocytes. Tsis tas li ntawd, cov stromal hlwb ntawm thymus tuaj yeem xaiv qhov ua haujlwm tau zoo thiab ua rau tus kheej-hloov T-cell repertoire. Yog li ntawd, qhov induction ntawm nruab nrab kam rau ua yog suav tias yog ib qho tseem ceeb tshaj plaws ua hauj lwm ntawm thymus.
Thaum yug, thymus yog li 5 cm ntev, 4 cm dav, thiab 6 hli tuab. Tsis zoo li lwm yam kabmob xws li ob lub raum, lub siab thiab lub plawv, tus thumus nce mus txog qhov hnyav (20 mus rau 37 g) thaum lub sijhawm puberty. Tom qab puberty, nws shrinks nrog lub sij hawm thiab ua scarcely distinguishable los ntawm ib puag ncig fatty ntaub so ntswg. Thaum xav txog cov yam ntxwv histological ntawm thymus, nws tuaj yeem muab faib ua lub hauv paus medulla thiab peripheral cortex, uas yog encapsulated los ntawm cov tshuaj ntsiav sab nraud.
Thyroid yog ib qho ntawm cov qog endocrine loj tshaj plaws, thiab tsuas yog qog uas khaws nws tus kheej secretions. Nws nyob hauv lub caj dab, hauv qab cov pob txha thyroid. Lub caj pas no tsim ob lub hauv paus ntsiab lus thyroid hormones; triiodothyronine thiab thyroxine. Cov tshuaj hormones tswj tus nqi ntawm metabolism,protein synthesis thiab cuam tshuam rau kev loj hlob thiab kev ua haujlwm ntawm ntau lwm lub cev hauv lub cev. Tsis tas li ntawd, cov thyroid tseem tsim cov tshuaj calcitonin, uas ua haujlwm hauv calcium homeostasis hauv lub cev. Tag nrho cov haujlwm no thiab cov haujlwm hormonal ntawm cov thyroid yog tswj los ntawm cov thyroid stimulating hormone (TSH) uas tsim los ntawm anterior pituitary . Histologically, thyroid caj pas muaj cov thyroid follicles, uas yog tsim los ntawm follicular cells, thiab parafollicular cells.
Dab tsi yog qhov txawv ntawm Thymus thiab Thyroid?
• Thymus yog ib feem ntawm lub cev los yog qog ntawm cov qog ntshav, qhov thyroid yog ib lub qog ntawm cov kab mob endocrine.
• Thymus nyob rau hauv anatomically nyob rau hauv lub anterior superior mediastinum, nyob rau hauv pem hauv ntej ntawm lub plawv. Hauv qhov sib piv, cov thyroid yog nyob rau hauv caj dab, hauv qab cov thyroid pob txha.
• Thymus tsim T- lymphocytes matured, thiab cov tshuaj hormones xws li thymosin, thymic humoral factor (THF), thymic factor (TF) thiab thymopoietin. Hauv qhov sib piv, cov thyroid tsim cov thyroid hormones xws li triiodothyronine, thyroxine, thiab calcitonin.
• Cov thyroid tswj tus nqi ntawm cov metabolism, cov proteins synthesis thiab kev ua haujlwm ntawm lub cev rau lwm cov tshuaj hormones, whereas thymus muab ib qho chaw inductive rau kev loj hlob ntawm T-lymphocytes.
Nyeem ntxiv:
1. Qhov txawv ntawm cov thyroid thiab Parathyroid
2. Qhov txawv ntawm Cov Thyroid Gland Nodule thiab Yooj Yim Fluid-Filled Sac
3. Qhov txawv ntawm Lymphocytes thiab Leucocytes
