Qhov Tseem Ceeb Qhov txawv - Cortical Nephron vs Juxtamedullary Nephron
Lub raum yog ib qho ntawm cov kabmob tseem ceeb ntawm peb lub cev uas ua rau ultrafiltration. Lub microscopic functional unit ntawm lub raum yog nephron. Lub nephron yog tsim los ntawm ob subunits. Lawv yog lub raum corpuscle thiab lub raum tubule. Lub raum corpuscle muaj capillaries hu ua glomerulus thiab encompassing qauv hu ua Bowman's capsule. Lub raum tubule txuas ntxiv los ntawm Bowman's capsule. Cov neeg noj qab haus huv muaj 0.8 txog 1 lab nephrons hauv lub raum. Muaj ob hom nephrons hauv lub raum xws li Cortical Nephron thiab Juxtamedullary Nephron. Qhov sib txawv tseem ceeb ntawm cortical nephron thiab juxtamedullary nephron yog, Cortical Nephron tsis nkag mus tob rau hauv medulla, thiab lawv cov glomerulus nyob hauv lub cortex thaum Juxtamedullary Nephron nkag mus tob rau hauv medulla thiab lawv cov glomerulus nyob hauv ciam teb ntawm cortex thiab medulla.
Cortical Nephron yog dab tsi?
Feem ntau ntawm nephrons pib los ntawm cortex. Lawv tsis nkag mus tob rau hauv medulla. Cov nephrons no muaj luv luv ntawm Henle. Lub voj luv ntawm Henle tsis nkag mus rau hauv medulla. Thiab yog li lawv raug hu ua cortical nephrons. Lub cortical nephrons tau muab faib ua ob pawg. Lawv yog,
- Npaj cortical nephrons
- Mid-cortical nephrons.
Cortical nephrons nyob rau sab nraud ntawm lub cortex. Nws muaj me me glomerulus. Lub raum corpuscle ntawm lub cortical nephron yog nyob ze ntawm lub raum cortex. Lawv lub luag haujlwm tseem ceeb yog qhov rov qab nqus dej thiab cov khoom me me los ntawm cov lim mus rau hauv cov ntshav thiab tso cov pov tseg ntawm cov ntshav mus rau cov zis.
Daim duab 01: raum Nephron
Lub renin yog ib qho serine protease enzyme uas zais los ntawm ob lub raum. Lawv koom nrog renin-angiotensin-aldosterone system (RAAS). Lub luag haujlwm tseem ceeb ntawm renin yog los tswj lub ntim ntawm cov kua dej ntxiv thiab cov hlab ntsha vasoconstriction. Yog li, lawv tswj cov ntshav siab. Qhov concentration ntawm renin enzyme yog tiag tiag siab nyob rau hauv lub cortical nephron. Hauv tib neeg, 85% ntawm nephrons yog cortical nephrons. Tab sis nyob rau hauv lwm yam tsiaj, tus lej no tuaj yeem sib txawv raws li ib puag ncig. Piv txwv li, cov tsiaj hauv thaj av arid muaj tsawg dua ntawm cortical nephrons vim lawv cov dej haus tsawg heev.
Dab tsi yog Juxtamedullary Nephron?
Lub juxtamedullary nephrons yog hom nephrons uas tsuas pom muaj nyob hauv cov noog thiab tsiaj txhu. Qhov chaw ntawm juxtamedullary nephron yog sab hauv ntawm cortex ib sab ntawm medulla. Raws li lub npe qhia, lawv lub raum corpuscle nyob ze ntawm medulla. Lawv muaj glomerulus loj. Thiab lawv kuj muaj lub voj ntev ntawm Henle uas nkag mus tob rau hauv lub raum medulla.
Daim duab 02: Juxtamedullary Nephron
Hauv tib neeg, 15% nephrons yog hom juxtamedullary. Lub hairpin khoov yog nkag mus tob rau hauv lub raum medulla. Lawv muaj tsawg dua ntawm cov enzyme renin (yuav luag tsis muaj renin enzyme tam sim no). Lub luag haujlwm tseem ceeb ntawm juxtamedullary nephron yog tsom thiab nthuav cov zis hauv lub raum. Qhov gradient ntau dua nyob rau hauv lub raum sib sib zog nqus medulla ua rau cov hom nephrons ua haujlwm ntau dua li lwm hom nephrons ntiav. Cov nephrons no ua ntau osmotic gradients nyob rau hauv lub raum medulla li no nws pab nyob rau hauv concentrating tso zis. Cov tsiaj hauv thaj av arid muaj ntau yam juxtamedullary hom nephrons.
Dab tsi yog qhov zoo sib xws ntawm Cortical Nephron thiab Juxtamedullary Nephron?
- Ob leeg yog hom nephrons.
- Ob leeg yog cov haujlwm ua haujlwm ntawm lub raum.
- Ob leeg yog tsim los ntawm lub raum corpuscles thiab lub raum tubules.
- Ob leeg ntawm cov nephrons no pab rau lub raum kev ua haujlwm, uas yog ultrafiltration.
Qhov txawv ntawm Cortical Nephron thiab Juxtamedullary Nephron yog dab tsi?
Cortical Nephron vs Juxtamedullary Nephron |
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| Lub cortical nephron yog ib hom nephron nyob rau hauv lub raum uas tsis nkag mus tob rau hauv medulla, thiab lub glomerulus nyob rau hauv lub cortex. | Lub juxtamedullary nephron yog lwm hom nephron uas nkag mus tob rau hauv medulla, thiab lawv cov glomerulus nyob rau ntawm ciam teb ntawm cortex thiab medulla. |
| Lub cortical nephron nyob rau sab nraud ntawm lub cortex. | Lub juxtamedullary nephron yog sab hauv ntawm lub cortex ze rau lub raum medulla. |
| Glomerulus Size | |
| Lub cortical nephron muaj me glomerulus. | Lub juxtamedullary nephron muaj cov glomerulus loj dua. |
| qhov ntev ntawm lub voj voog ntawm Henle | |
| Lub cortical nephron muaj ib lub voj luv ntawm Henle. | Lub juxtamedullary nephron muaj ib lub voj ntev ntawm Henle. |
| Kev sib tw ntawm renin | |
| Lub cortical nephron muaj qhov siab ntawm renin enzyme. | Lub juxtamedullary nephron yuav luag tsis muaj renin enzyme. |
| Tag Nrho Cov Nephrons Feem pua | |
| Cortical nephrons account rau 85% ntawm tag nrho cov nephrons hauv tib neeg. | Juxtamedullary nephrons account rau 15% tawm ntawm tag nrho cov nephrons hauv tib neeg. |
| Sympathetic paj hlwb innervations | |
| Cortical nephrons yog nplua nuj nyob rau hauv lub paj hlwb innervations. | Juxtamedullary nephrons yog cov neeg pluag nyob rau hauv sympathetic paj hlwb innervations. |
| Function | |
| Cortical nephrons muaj reabsorption thiab secretion muaj nuj nqi ntawm cov tshuaj. | Juxtamedullary nephrons muaj kev ua haujlwm ntawm cov zis concentration. |
| Txoj kab uas hla ntawm afferent thiab efferent arterioles | |
| Txoj kab uas hla ntawm afferent arteriole loj dua efferent arteriole hauv cortical nephrons. | Txoj kab uas hla ntawm afferent arteriole thiab efferent arteriole yog sib npaug rau juxtamedullary nephrons. |
Summary – Cortical Nephron vs Juxtamedullary Nephron
Lub nephron yog lub microscopic functional unit ntawm lub raum uas yog tsim los ua lub luag haujlwm tseem ceeb ntawm lub raum, uas yog Ultrafiltration. nephron yog tsim los ntawm ob subunits uas yog lub raum corpuscle thiab lub raum tubule. Lub raum corpuscle muaj capillaries hu ua glomerulus thiab encompassing qauv hu ua Bowman's capsule. Lub raum tubule txuas ntxiv los ntawm Bowman's capsule. Lub raum tubule thiab capsule yog tsim los ntawm epithelial hlwb nrog lub lumen. Ob hom nephrons tuaj yeem txheeb xyuas hauv lub raum. Lawv yog cortical nephrons thiab juxtamedullary nephrons. Lub cortical nephron tsis nkag mus tob rau hauv medulla, thiab lawv cov glomerulus nyob rau hauv lub cortex. Lub juxtamedullary nephron nkag mus tob rau hauv medulla, thiab lawv cov glomerulus nyob rau ntawm ciam teb ntawm cortex thiab medulla. Cov nephrons ntau tshaj plaws yog cortical nephrons nyob rau hauv lub raum. Qhov no yog qhov txawv ntawm cortical nephron thiab juxtamedullary nephron.
Download PDF Version ntawm Cortical Nephron vs Juxtamedullary Nephron
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Cortical Nephron thiab Juxtamedullary Nephron
