Thinlung chu eng nge ni? He engine te tak te hi chipchiar takin sawi ila!

I rilru chhung atanga lo chhuak reng reng ‘dug-dug’ ri chu khawi atanga lo chhuak nge a nih tih i ngaihtuah ngai em, eng thil nge a chhan? It's our heart , engine ang chi taksa peng te tak te mahse chak tak, kan taksa nunna pe theitu a ni. Vawiin hian he taksa peng mak tak mai hi kan sawi dawn a, a hnathawh dan te, natna a thlen dan te, a hriselna atana kan tih theih dan te kan sawi dawn a ni.

Thinlung chu eng nge ni tak tak?

A awlsam zawngin, i thinlung hi taksa peng te tak te, mahse pawimawh tak, i kutphah ang vel a ni. Kan taksa chhunga thisen pump ber ang mai a ni. Kan taksa pum puiah thisen a pump chhuak thin. He machine mak tak hi taksa peng leh taksa peng hrang hrang atanga siam a ni.

I thinlung hian pindan lian pali a nei a, chu chu in chhunga pindan ang mai a ni. Thisen chu heng chamber-ah hian a lut a, chutah chuan rei vak lo a awm a, chutah chuan taksa peng dangah a pump chhuak a ni. Thinlung hi electrical impulse hmangin a na a. Heng impulse te hian thisen chu heng chamber kaltlangin a kalpui thin. I thluak leh nervous system hian thinlung hnathawh dan a thunun a.

Chuti a nih chuan, thinlungah eng thil nge thleng tak tak?

Thinlung hnathawh ber chu taksa pum puia thisen pump chhuah hi a ni . He thisen hian kan taksaa cell zawng zawngte chu an mamawh oxygen leh nutrients a pe chhuak vek a ni. Tin, bawlhhlawh, carbon dioxide ang chi, cell-te siam chhuah chu a phur chhuak a, taksa peng dangah a thlen a, chutah chuan a paih chhuak thei a ni.

Chu bâkah, i thinlung hian thil dang a ti ṭhîn:

• I heartbeat rate leh rhythm a control thin.
• I thisen sang chu a level dik takah a awm tir thei a ni.

Thinlung hian heng thilte hi amah chauhin a ti lo. System dang nen a thawk dun a:

• Nervous System: Nervous system hian i heart rate control nan a pui thin. I mut laiin i heart rate tihhniam nan signal a thawn a, i stress laiin a ti chak bawk. Exam i neih hmaa i thinlung a nat chak zia kha han ngaihtuah teh!
• Endocrine System ah hian a awm a :He system hian hormone a tichhuak thin . Heng hormone te hian i thisen kalna kawngte chu constrict emaw dilate emaw turin an hrilh thin. Hei hian i thisen sang a nghawng a ni. Entirnan, i thyroid gland atanga hormone lo chhuak hian i thinlung thawk chak dan emaw, a thawk slow dan emaw a nghawng thei a ni.

Thinlung peng hrang hrangte chu engte nge ni? In ang mai a ni!

In lian tak peng ang maiin thinlung peng hrang hrangte hi kan suangtuah thei a ni. He sawifiahna hi han en teh:

• Bang: In bang ang mai a ni.
• Chambers: Room anga ngaih theih a ni.
• Valve: Room kawngkhar ang bawkin a inhawng thei a, a khar thei bawk.
• Thisen kalna kawng : In chhunga tui pipe system ang chi.
• Electrical conduction system: In pakhata electric pe chhuaktu electrical wiring system ang chi.

Thinlung bang

I thinlung bangte hi taksa peng hrang hranga thisen pump pui turin taksa peng hrang hrang inzawmkhawm leh zau zawka siam a ni. Thinlung bang chu dinglam leh veilam ah a inthen a , chu chu muscular tissue septum an tih hmangin a ni .

Heart wall-ah hian layer pathum a awm a:

• Endocardium: A chhungril ber a ni.
• Myocardium: A taksa peng hrang hrang (muscular middle layer) a ni. Hei hi thinlung natna thlentu ber a ni.
• Epicardium: A pawn lam ber venhimna a ni.

He epicardium hi i pericardium layer khat a ni a . Pericardium hi i thinlung zawng zawng hualtu venhimna bawm a ni. Lubricate turin tui a siam chhuak a, taksa peng dang nena inhnaih loh nan a veng bawk.

Thinlung chamber hrang hrang

I thinlung hian pindan pali ang maiin pindan hrang hrang pali a nei a. Upper chamber (atria) pahnih leh lower chamber (ventricles) pahnih a awm a, chu chu thinlung dinglam leh veilam a ni.

• Right atrium: Vein lian pahnih hian oxygen tlachham thisen chu right atrium-ah an rawn hruai lut a. Superior vena cava hian taksa chunglam atanga thisen a rawn keng tel a. A hnuai lam vena cavaChumi hnuah chuan atrium dinglam chuan he thisen hi ventricle dinglam ah a pump lut ta a ni.
• Right ventricle: He dinglam chamber hnuai lam hian oxygen tlachham thisen chu lungah pulmonary artery hmangin a thawn chhuak thin . Chumi hnuah chuan lung hian thisen chu oxygen a pe leh ta a ni.
• Left atrium: Thisen chu lungin oxygen a pek hnuah, pulmonary veins hian oxygen tamna thisen chu left atrium-ah a rawn hruai lut a. He upper chamber hian thisen chu veilam ventricle-ah a pump chhuak thin.
• Left ventricle: Left ventricle hi dinglam ventricle aiin a lian deuh a. Hei hi taksa pum puiah oxygen tamna thisen a pump chhuah vang a ni. Chuvangin chakna tlem a mamawh zawk.

Thinlung valve a awm

I thinlung valve te hi i thinlung pindan inkar kawngkhar ang mai a ni. Thisen luang chhuak turin an hawng a, an khar bawk. Tin, kawng dik lova thisen luang chhuak tur chu an titawp bawk. Chu chu thil mak a ni lo maw?

Atrioventricular (AV) hmanga siam a ni

Heng valve te hi i thinlung pindan chunglam leh hnuai lam inkar ah an inhawng thin. Anni chu:

• Tricuspid valve: I atrium dinglam leh ventricle dinglam inkar kawngkhar.
• Mitral valve: I left atrium leh left ventricle inkar kawngkhar.

Semilunar (SL) hmanga siam a ni

Heng valve te hi i thisen kalna atanga thisen a chhuah chuan an inhawng thin. Anni chu:

• Aortic valve: I veilam ventricle atanga thisen a luang chhuah chuan a inhawng a, chu chu aorta (thisen oxygen tamna taksaa phurtu main artery)-ah a lut a ni .
• Pulmonary valve: I ventricle dinglam atanga thisen a luang lut a , pulmonary arteries (oxygen tlachham thisen lung chhunga phur thei artery chi khat awmchhun) ah a inhawng thin.

Thisen kalna kawngte

I thinlung hian thisen kalna kawng chi thum hmangin thisen a pump chhuak thin:

• Arteries: Chungte chuan thinlung atanga oxygen tamna thisen chu taksa tissue-ah a phur a. Mahse, i pulmonary arteries chu a danglam a, oxygen tamna thisen tlem zawk chu lungah a phur lut a ni.
• Veins: Hengte hian oxygen tlakchham thisen chu thinlungah a rawn hruai kir leh thin.
• Capillaries: Hengte hi thisen kalna kawng te tak te an ni. Oxygen tamna thisen leh oxygen tlachhamna thisen inthlengna chu heng capillaries kaltlangin a ni.

Electrical conduction system – thinlung chhunga ‘current’ awm

He thinlung conduction system hi in chhunga electric wiring awm ang mai a ni. I thinlung thawk rhythm leh speed a control thin. Signal te hi thinlung chung ber atanga tan a, hnuai lam pan thin. He conduction system ah hian:

• Sinoatrial (SA) ah hian a awm a:He hmun atang hian thinlung thawk tirtu signal te hi a chhuak thin. Hei vang hian thinlung ‘natural pacemaker’ an ti a ni.
• Atrioventricular (AV) node: Thinlung chunglam chamber atanga lower chamber thlengin electrical signal a kalpui thin.
• Bundle of His, Left and Right bundle branches, leh Purkinje fibers: Hengte hian i thinlung cell te chu a ti contract a, thisen a pump chhuak thin.

Thinlung tichhe thei natna tlanglawn tak takte chu engte nge ni?

Heart disease hi damdawi lam natna langsar ber pakhat a ni. Dik tak chuan ram thenkhatah chuan thihna thlentu ber a ni.

I thinlung tichhe thei natna tlanglawn thenkhat chu hetiang hi a ni:

• Arrhythmia: Lung chak lutuk, a hniam lutuk, a mumal lo.
• Cardiomyopathy : Lung ruh a thim, a lian, a nghet lo.
• Congestive heart failure: Thinlung hi a khauh emaw, a chak lo emaw a, thisen a pump tha thei lo.
• Coronary artery disease: Coronary arteries chhunga thau awm (plaque buildup) a awm a, a ti tawi.
• Heart attack / Myocardial infarction: Coronary artery a block nghal a, heart muscle thenkhat oxygen a hloh.
• Heart valve natna: Heart valve a thawk tha lo.
• Thisen sang: I thisen hian i thisen kalna kawng bang chu nasa takin a nawr a.
• Cholesterol sang: I thisena thau tamna a ni.

Engtin nge i thinlung a hrisel theih ang?

I thinlung tichhe thei dinhmun i neih chuan, .I doctor enkawl dan tur dik taka zawm a pawimawh. I thinlung hriselna atana i nunphung tihdanglam theih thenkhat a awm bawk.