2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2023-12-24 20:51
Human chorionic gonadotropin (hCG), ntxiv los ntawm fetal LH, ntseeg tau tias yog thawj qhov kev txhawb nqa cuam tshuam rau kev loj hlob ntxov thiab kev loj hlob ntawm Leydig hlwb nrog rau kev txhawb nqa lub ncov tom ntej. ntawm testosterone ntau lawm.
Dab tsi txhawb qhov tso tawm ntawm testosterone thaum lub sij hawm embryonic txoj kev loj hlob?
Y Luteinizing Hormone / Chorionic Gonadotropin Receptor. Testicular (Leydig cell) testosterone secretion yog stimulated los ntawm kev ua haujlwm ntawm
xya-transmembrane domain, G protein-coupled LHCGR.
Dab tsi txhawb qhov tso tawm ntawm testosterone?
Nyob rau hauv teb rau gonadotrophin-tso cov tshuaj hormones los ntawm hypothalamus, lub caj pas pituitary tsim luteinising hormoneuas taug kev hauv cov hlab ntsha mus rau gonads thiab txhawb kev tsim thiab tso tawm ntawm testosterone.
Puas yog testosterone secreted hauv fetal lub neej?
Nyob rau hauv tib neeg fetus testosterone tsim yog pib sai sai tom qab qhov sib txawv ntawm qhov testis (kwv yees li 8 lub lis piam ntawm cev xeeb tub), thiab cov ntsiab lus siab tshaj plaws ntawm testosterone hauv cov poj niam cev xeeb tub tau ua tiav nruab nrab ntawm 10 thiab 15 lub lis piamntawm fetal life.
Dab tsi txhawb kev tsim cov testosterone hauv cov hlwb sib cuam tshuam?
Nyob rau hauv cov txiv neej, LH stimulates testosterone ntau lawm los ntawm interstitial hlwb ntawm testes (Leydig hlwb). FSH txhawb cov qog nqaij hlav loj hlobthiab txhim kho kev tsim cov androgen-binding protein los ntawm Sertoli hlwb, uas yog ib feem ntawm lub testicular tubule tsim nyog rau sustaining lub maturing phev cell.
Testosterone | Reproductive system physiology | NCLEX-RN | Khan Academy
Pom zoo:
Lub sijhawm kuv lub sijhawm dawb lossis thaum kuv lub sijhawm dawb?
yog li, qhov no txhais tau tias "thaum kuv lub sijhawm dawb" tsis siv ntauthiab koj muab "hauv kuv lub sijhawm dawb" ntau dua nyob rau qhov kawg ntawm kab lus. Piv txwv li: Kuv tau taug kev tus dev thaum kuv lub sijhawm dawb.
Lub sijhawm nyob qhov twg ntawm lub sijhawm teem sijhawm?
kab kab rov tav ntawm lub rooj ntu ntu yog hu ua ntu ntu. Lub sijhawm nyob rau ntawm lub sijhawm nyob qhov twg? Ib lub sijhawm yog kab kab rov tav ntawm lub rooj ntu ntu. Muaj xya lub sij hawm nyob rau hauv lub sij hawm ntawm lub sij hawm, nrog txhua tus pib ntawm sab laug.
Ntawm yog qhia los ntawm lub sijhawm dhau los?
Kev piav qhia: Kev hla dhau yog qhov ntsuas kev hloov pauv ntawm cov khoom hla cov xov xwm dhau lub sijhawm muab. … Qhov kev ntsuas dhau los suav nrog cov neeg siv cov ntaub ntawv thiab lwm yam khoom siv, xws li nyiaj siv ua haujlwm, kev lees paub, thiab kev ntim khoom.
Lub sijhawm photosynthesis oxygen yog hloov zuj zus los ntawm dej los ntawm kev pab?
Cov txheej txheem photosynthesis cuam tshuam nrog kev tawg ntawm cov dej molecules rau hauv hydrogen thiab oxygen nyob rau hauv lub hnub ci yog hu ua photolysisntawm dej. Muaj ntau cov as-ham koom nrog hauv cov tshuaj tiv thaiv zoo li chlorine thiab manganese.
Lub sijhawm twg ntawm tus mob syphilis yog tus cwj pwm los ntawm qhov pom ntawm chancre?
Primary Stage Cov tsos mob ntawm ib leeg chancre qhia txog thawj (thawj) theem ntawm cov tsos mob syphilis, tab sis tej zaum yuav muaj ntau qhov mob. Lub chancre feem ntau yog (tab sis tsis tas li) khov kho, puag ncig, thiab tsis mob. Nws tshwm ntawm qhov chaw uas tus mob syphilis nkag mus rau hauv lub cev.
