Late Distal Tubule thiab Sau Cov Kav Dej Cov dej no tau tsav los ntawm kev nce qib ntawm osmolarity hauv lub raum interstitium uas khiav los ntawm lub raum cortex mus rau nws qhov tseem ceeb tshaj plaws hauv lub raum medulla.
osmolarity siab tshaj nyob rau hauv lub nephron nyob qhov twg?
Lub 300 mOsm / L kua los ntawm lub voj poob dej mus rau qhov siab dua sab nraud ntawm lub voj thiab nce hauv tonicity kom txog thaum nws ncav cuag qhov siab tshaj plaws ntawm hauv qab ntawm lub vojthaj chaw no sawv cev rau qhov siab tshaj plaws hauv cov nephron, tab sis cov kav dej sib sau tuaj yeem ncav cuag tib lub tonicity nrog cov nyhuv ADH siab tshaj plaws.
Dab tsi yog osmolarity hauv lub raum?
Keeb Kwm: Cov zis osmolality qhia lub peev xwm ntawm raum kom pom tseeb cov zisthiab qhia txog cov tshuaj tua kab mob ntawm vasopressin.
Dab tsi yog qhov osmolarity ntawm kev sau duct?
Nyob rau hauv lub cortical collecting duct, dej nqus tau tshwm sim nyob rau hauv lub xub ntiag ntawm ADH thiab cov tubular kua los ua isotonic rau plasma (290 mosmollkg H20); Lub ntim ntawm cov kua xa mus rau lub medullary collecting duct yog me me thiab dej nqus raws li osmotic gradient mus rau hauv lub medullary interstitium nce lub tubular …
qhov osmolarity ntawm cov lim qhov qis tshaj?
Yog li ntawd, cov lim dej hauv lub distal convoluted tubule yog qhov tsawg kawg nkaus concentrated, txog 100 mOsm / kg.
