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Fetal Development: Kar khat hnu Kar khata Khualzin Mak Tak

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📅 Updated: Jul 15, 2026 • ⏱ 16 min read • Editorial policy a ni
Fetal Development: Kar khat hnu Kar khata Khualzin Mak Tak
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Nu i nih dawn tih thuthang hian i thinlungah lawmna nasa tak a thlen thin a ni lawm ni? Chutih rual chuan, i pum chhunga chu thil nung te tak te chu engtin nge a lo thanglian zauh zauh tih chu i hre duh hle a ni. Process mak tak a ni tak zet a ni. Vawiin hian he zinkawng mak tak, i naupai tih i hriat hma pawha intan, i fa naupangte he khawvela a lo kal thlenga chhunzawm zel hi kan sawi dawn a ni.

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Naute thanlenna kawng pawimawh pathum

A awlsam zawngin, naute lo thanglian zel dan zawng zawng hi stage lian pathum-ah then theih a ni. Inbiak dan pangngaiah heng thute hi hmang lo mah ila, a chanchin hriat a phu hle.

Dawhsan Hun bituk Eng thil nge thleng mai mai
Germinal Stage a ni Nau pai atanga kar 2 vel a liam hnuah Sperm leh egg chu an inzawm khawm a, cell mass an lo ni a, nausen pum chhungah an awm ta a ni.
Embryonic Stage (Embryonic Stage) a ni Kar 3 atanga kar 8 chhung a ni Naute taksa peng lian ber ber, thluak, thinlung leh ke leh ke te chu a lo insiam tan a.
Fetal Stage a ni Kar 9 atanga piang thleng A taksa peng hrang hrangte chu a lo thang tha hle a, naute rit leh sei zawng a lo pung a, nau piang turin a inbuatsaih mek a ni.

Germinal Stage - A hmasa ber atan

Hei hi stage tawi ber a ni. Conception hi sperm pakhatin fallopian tube-a i egg a hmuh hian a thleng thin. Chuta cell pakhat lo awm chu zygote an ti a. He zygote hi nausen pum chhungah kar khat vel a kal thin. He zin chhung hian a inthen darh a, cell tam tak a siam a ni. A tawpah chuan he ball of cells hi hmun hnih ah a inthen ta a ni. A ṭhen khat chu a tâwpah chuan embryo a lo ni a, a ṭhen dang chu nausen (placenta) a lo ni ta a ni. He ball of cells (blastocyst) hi uterus-ah a kal a, uterine wall-ah a insiam lut a ni. Hei hi a hlawhtlin chuan i taksain naupai nana a mamawh hormone a siam tan ang a, i period pawh a tawp tawh ang.

Embryonic Stage - Shape pakhat a lo chhuah hian

He stage hi naupai kar 3-na atanga kar 8-na thlengin a intan thin. Tunah chuan chu ball of cells chuan zawi zawiin mihring angin a rawn insiam tan ta a ni. Tunah chuan embryo kan ti ta a ni. Hemi hun chhung hian neural tube (a hnuah thluak leh ruhro a lo ni ta), lu, mit, hmui leh ke leh ke te chu a lo piang tan thin. Kar 5-6 velah chuan thinlung siamtu tur cell te chu an lo piang tan a, an thawk tan ta a ni. Kar 6-naah chuan kut leh ke chu knob te tak te ang maiin a lang thin. Kar 8 na tawp lamah chuan naute taksa peng lian leh system tam zawk chu a lo insiam kim vek tawh a ni. Hei hi nu tam takin zing natna an neih tan hun pawh a ni .

Fetal Stage - Nau piang thlenga thanlenna

He stage hi naute pian thlengin kar 9 chhung a ni. Tunah chuan embryo chu nausen (fetus) kan ti ta a ni. Naute sex hi kar 9 vel a ni tih hriat ni mah se, ultrasound scan hmanga hmuh theih nan hun rei tak a ngai a ni. Naute taksa peng lian ber berte chu an lo thanglian zel a, an puitlin zel bawk. Hemi hun chhung hian nail, eyelashes, leh sam ang chi thil te pawh a lo thang lian bawk. Naute hian a ke leh ke te chu a ti che thei a, mahse kar 20 vel hnuah chuan i hre tan dawn lo. Naute rihna leh sei zawng tihpunna tam zawk hi he hun chhung hian a thleng thin .

Engtin nge naupai hi a intan? Engtin nge ni te hi i chhut thin?

Hei hi thil mak deuhin a lang mai thei. Damdawi lamah chuan i naupai hi i period hnuhnung ber ni hmasa berah a intan thin . A nihna takah chuan naupai hi kar hnih vel hnuah a thleng thin. Mahse doctor chuan i period hnuhnung ber date a zawt che a, a chhan chu i due date chhiar nan a hmang a ni. Chuvangin i clinic book-ah hian he ni dik tak hi record a ni ang.

A awlsam zawngin, naupai hma kar hnih atang khan gestation period kan chhiar tan thin. Chuvangin kar 4 i ni tawh tih i nih chuan a takah chuan naute pian atanga kar 2 vel a ni tawh.

Naute than chhoh dan thla tin, kar tin

Naupai pangngai chu kar 40 vel a ni. He hun hi hmunpui pathum-ah kan ṭhen a. Chungte chu trimester an ti a. Trimester khat chu thla thum vel a ni.

Trimester hmasa ber (Kar 1-12) 1.1.

Hei hi naupai hun pawimawh leh pawimawh ber a ni. Hetih lai hian cell ball te tak te chu mihring ang maia lian embryo-ah a lo thang lian thin. Hetih hun lai hian nu tam takin hahna leh zing natna an tawk nasa ber bawk.

Thla 1 (Kar 1-4) 1.1.

  • Kar 1-2: Hei hi i taksain naupai tura a inbuatsaih tak tak lai a ni. Ovary (ovulation) atanga egg chhuah tir turin a inbuatsaih mek a ni.
  • Kar 3: Naupai a lo awm. Sperm leh egg chu an inzawm khawm a, zygote an siam a ni.
  • Kar 4: Blastocyst hian uterine wall-ah a insiam lut a. Placenta leh amniotic sac te chu a lo piang tan a. Kar lina tawp lamah chuan blastocyst chu poppy chi ang vel a ni tawh.

Thla 2 (kar 5-8) 1.1.

Mi tam tak chuan he hun lai hian nau an pai tih an hrechhuak thin. In lama tih theih urine pregnancy test chuan tunah chuan positive result a awm tawh ang.

  • Kar 5: Neural tube (thluak leh ruhro) a lo piang chhuak a. Thinlung te tak te hian minute khatah vawi 110 vel a na tan thin.
  • Kar 6: Kut leh ke chu knob te tak te ang maiin a lang tan. Thisen kal vel a tan ta. Beng, mit leh hmui siamna tur hmunte chu a lo lang ang. Doctor chuan vaginal ultrasound scan hmangin heartbeat a hre thei mai thei.
  • Kar 7: Ruh a lo piang tan. Sexual organs te chu a lo thang tan ta a ni. Lu chu taksa dang zawng aiin a lian zawkin a lang.
  • Kar 8: Organ leh system lian zawng zawng a lo piang chhuak vek. Kut zungtang leh ke ruh inkarah hian membrane a awm a. Umbilical cord hi a insiam tha hle a, naute tan oxygen leh nutrition a pe a ni.

Kar 8 hnuah he embryo hi fetus kan ti a.Thla hnihna tawp lamah chuan naute chu bean ang vel a ni a, chu chu inch khat vel a sei a ni.

Thla 3 (Kar 9-12) 1.1.

Hetih hun chhung hian naute hi a thang chak hle.

  • Kar 9: Ha leh taste buds a lo piang tan. Muscle te chu a lo thang chho zel a. Doppler ultrasound hmangin naute thinlung thawk i hre thei mai thei.
  • Kar 10-na: Kut, ke leh kut zungtang te chu a insiam kim vek a. Nail a lo awm tan ta.
  • Kar 11: Naute chuan a kut a beng a, a hmui a hawn leh khar ang chi thil a ti tan thin. A khup leh a kekawrte chu a thawk tha hle. Mahse, chutiang chetna chu i la hre thei lo.
  • Kar 12: Organ lian ber ber, taksa peng leh ruh zawng zawng chu a hmunah a awm vek. Tunah chuan hmasawn zel a ngai ta. Naute chuan a chhehvel amniotic fluid-ah a in tan a, a zun tan bawk.

Kar 12 hnuah nau pai theihna a tlahniam nasa hle a, naute hmasawnna atana thil pawimawh ber berte chu a lo thleng tawh a ni. Nu tam tak tan chuan zing natna pawh he hun lai vel hian a reh thin.

Thla thumna tawp lamah chuan naute chu lemon ang vel a ni a, chu chu inches 3 vel a sei a ni.

Trimester hnihna (Trimester hnihna: Kar 13-28 chhung) .

Mi tam tak chuan he hun hi naupai hun tha ber niin an sawi. Zing natna a liam tawh a, i taksa chu tlem a hahdam deuh hun a ni. Hei hi naute chu nausen pum chhunga a che leh a beih lai i hriat tan tirh pawh a ni. Naute sex hi Anomaly scan'' neih chhung hian i hre thei fo a, chu chu kar 20 vel a tih thin a ni.

Thla 4 (Kar 13-16) 1.1.

  • Kar 14: Naute vun chu a thim tan a. Sam (fur) te chu a lo thang lian thin.
  • Kar 16: I naute beng a lo thang tha hle. I thusawi chu a hre thei. Mit khap chung pawhin êng a chhâng thei a ni.

Thla lina tawp lamah chuan naute chu avocado ang vel a ni a, a sei zawng hi inches 5 vel a ni.

Thla 5 (kar 17-20) 1.1.

  • Kar 17: Naute vunah hian thil dum, cheesy Vernix an tih chu a lo piang a. Hei hi vun chhiatna chu amniotic fluid-a rei tak a awm loh nan a ni.
  • Kar 18: Naute taksa pum pui chu sam sei tak (lanugo) in a khuh vek a. Hei hian naute taksa lum leh vawt a tidanglam thei a ni.
  • Kar 19: Tunah chuan naute chu a chak hle tawh. Naute che vel leh che vel chu i hre tan ang.
  • Kar 20: Thluak hmun thenkhat, hriatna panga nena inzawm te chu an lo thang lian tan a.

Thla nga a tlin meuh chuan naute hi inches 10 vel a sei a, pound 1 vel a rit a ni.

Thla 6 (kar 21-24) 1.1.

  • Kar 22-na: Naute chuan i thinlung thawk a hre thei a, i pum rum ri leh i thawk a hre thei bawk.
  • Kar 23: Tun kar hnu lama nau piang hmasa a lo awm chuan doctor-te chuan intensive care unit-ah naute chu enkawlna hnuaiah a nung reng thei a ni.
  • Kar 24-na: Naute lungte chu a insiam kim vek tawh a, mahse pum pawn lama thawk thei tur khawpin a la puitling lo.

Thla rukna tawp lamah chuan naute hi feet 1 vel a sei a ni a, pound 2 vel a rit a ni.

Thla 7 (kar 25-28) 1.1.

  • Kar 26: Naute lungah hian thil pakhat Surfactant'' tih chu a siam tan a, hei hian a pian hnua thawk chhuahna kawngah nasa takin a pui a ni.
  • Kar 27: Naute chuan a mit a hawng thei a, a khar thei bawk. Mitmeng pawh a lo insiam a.
  • Kar 28: Naute chu nau neih tura inbuatsaihna atan a lu a thlak tan thei.

Thla sarih na tawp lamah chuan naute hi inches 14-15 vel a sei a ni a, pound 2-3 vel a rit a ni.

Third Trimester (Third Trimester: Kar 29-40 chhung) a ni.

Hei hi naupai hun hnuhnung ber a ni. Ni i chhiar tan a, i naute hmuh thuai chu i duh hle. Hemi hun chhung hian kar tin i naute piang tur atana inbuatsaih a pawimawh hle. Hetih hun chhung hian naute rihna hi a pung chak hle a ni. Hemi chhung hian i doctor chuan a check fo ang che. A tirah chuan kar hnih danah clinic-ah lo kal turin a ti ang che a, a tawpah chuan kar khatah vawi khat lo kal turin a ti ang che.

Thla 8 (kar 29-32) 1.1.

  • Kar 29: Tunah chuan naute hian a pum chhungah hmun a nei tlem tawh avangin, bump aiin finger poke ang deuhin a lang thei.
  • Kar 30: Naute thluak hi a thang chak hle a.
  • Kar 32-na: Lung leh thluak tih lohah chuan taksa peng dang tam zawk chu puitling leh pian theih tura peih tawh an ni.

Thla riatna tawp lamah chuan naute hi inches 17-18 vel a sei a, pound 5 vel a rit a ni.

Thla 9 (kar 33-36) 1.1.

  • Kar 33: Naute ruh zawng zawng chu a chak chho vek a, luruh ruh tih loh chu. Luru ruh hi a nem avangin nau piang laiin awlsam takin a chhuak thei a ni.
  • Kar 36: Naute sam sei tak (lanugo) chu a bo ta. Lu chungah sam a lo seng chho zel a.

Thla 9-na tawp lamah chuan naute hi inches 17-19 vel a sei a, pound 6-7 vel a rit a ni.

Thla 10 (kar 37-40) 1.1.

He thla tawp chhung hian engtik lai pawhin nau neihnaah i kal thei a ni.

  • Kar 37-na: Naute dinhmun a inthlak a, nau piang tura inbuatsaih a ni. Vawi tam tak chu lu chu a hnuai lam a hawi a, pelvis chhungah a tla thla thin.
  • Kar 39: Tunah chuan naute chu a lo thanglian kim tawh (Full-term) . Khawvela lut turin inpeih tawh!
  • Kar 40: Hei hi i due date beisei kar a ni. Nau neih chhinchhiahna i neih chuan doctor ko nghal rawh.

Naupai kar hnuhnung berte i zir dawn teh ang.

Doctor-te’n i naupai kar tawp lam an sawi hian thumal hrang hrang an hmang tih i hre tawh ngei ang. Heng thumalte hian i naute chu a hun takah, a hma emaw, a pian tlai emaw a kawk a ni. Hei hi i naute hian harsatna a tawh theih dan tur hriat nan a pawimawh hle.

Hnam hrang hrang (Term) 1.1. Hun bituk
Hun hmasa lam Kar 37 atanga kar 38 leh ni 6 thleng
Hun pumhlum a ni Kar 39 atanga kar 40 leh ni 6 thleng
Late-term a niKar 41 atanga kar 41 leh ni 6 thleng
Post-term a ni Kar 42 leh a hnuai lam

Zawhna tlangpui i neih theih ṭhenkhat

Engtiang chiahin nge ka naupai tih ka hriat theih ang?

I naupai tirh atang khan i taksa hian hormone (Human Chorionic Gonadotrophin - HCG) tih a siam chhuak thin. Hei hi in lama zun test atanga hriat chhuah hormone a ni. Mahse, he hormone level hi test hmanga hriat theih tur level-a a san theih nan hun rei tak a ngai a ni. A tlangpuiin, i period hnuhnung ber atanga kar thum atanga kar li hnuah chauh hei hi chiang takin i hre thei ang.

Naupai thar chungchangah engtikah nge doctor ka hmuh ang?

In lama naupai test-in nau i pai tih a finfiah hnuah i doctor ko vat la, i appointment hmasa ber tur ruahman rawh.

I thusawi lai chuan doctor chuan nau neih hmaa vitamin i ei em tih a zawt che a. Hei hian folic acid a pai . Folic acid hi naute thluak leh ruhro (neural tube) tha taka a thanlen theih nan a pawimawh hle. Chuvang chuan doctor-te chuan naupai hmain folic acid ei hmasa phawt turin an fuih che a ni. I la la lo a nih chuan doctor chuan a rang thei ang bera tan turin a hrilh ang che.

Kar tin leh i naute thanlenna ni tin hi a hlu a ni. He zinkawng mak tak karah hian zawhna, ngaihtuahna, hlauhthawnna i neih chuan i doctor nen zalen taka inbiakna neih hi hlau ngai suh.

Take-Home Thuchah a ni

  • Naute thanlenna hi thil buaithlak leh mak tak a ni a, nau pai atanga a pian thlengin a thleng thin.
  • Hmasawnna kawng pawimawh pathum chu germinal, embryonic leh fetal stage te an ni.
  • Hmasawnna pawimawh ber chu first trimester (kar 12 hmasa ber) ah a thleng thin . Hemi chhung hian naute taksa peng lian zawng zawng chu a lo piang vek a ni.
  • Kar 12 hnuah nau pai theihna a tlahniam nasa hle.
  • I naute hian a pum chhunga a la awm laiin i aw leh i thinlung thawk ang chi thil a hre tan thin. Chuvangin i naute nen inbia la, hla sak sak rawh.
  • Naupai i nih i hriat veleh folic acid ei tan a pawimawh hle.
  • I naupai chungchang emaw, i naute hmasawnna chungchangah zawhna i neih chuan i doctor nen sawipui hreh ngai suh.
❓ FAQ

FAQ

Evidence-based clinical answers to common patient questions

Engtiang chiahin nge ka naupai tih ka hriat theih ang?

I naupai tirh atang khan i taksa hian hormone (Human Chorionic Gonadotrophin - HCG) tih a siam chhuak thin. Hei hi in lama zun test atanga hriat chhuah hormone a ni. Mahse, he hormone level hi test hmanga hriat theih tur level-a a san theih nan hun rei tak a ngai a ni. A tlangpuiin, i period hnuhnung ber atanga kar thum atanga kar li hnuah chauh hei hi chiang takin i hre thei ang.

Naupai thar chungchangah engtikah nge doctor ka hmuh ang?

In lama naupai test-in nau i pai tih a finfiah hnuah i doctor ko vat la, i appointment hmasa ber tur ruahman rawh.

I thusawi lai chuan doctor chuan nau neih hmaa vitamin i ei em tih a zawt che a. Hei hian folic acid a pai . Folic acid hi naute thluak leh ruhro (neural tube) tha taka a thanlen theih nan a pawimawh hle. Chuvang chuan doctor-te chuan naupai hmain folic acid ei hmasa phawt turin an fuih che a ni. I la la lo a nih chuan doctor chuan a rang thei ang bera tan turin a hrilh ang che.

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