I thinlung natna thuruk: Cardiac Conduction System chungchang hi i zir dawn nia.

Engtin nge i thinlung chu hetiang taka a thawk chhunzawm zel, hetiang taka chiang taka a thawk tih i ngaihtuah ngai em? Darkar kut chhuak ang mai a ni a, harsatna awm lovin, nitin, kum tam tak chhung... Hei hi thil dang mai a ni lo. Kan thinlung chhungah hian electrical system mak tak mai a awm a. Chu chu Cardiac Conduction System kan tih chu a ni. Hei hi thinlung chhung ngeia ‘electrical wiring system’ te tak te ang mai a ni. Tunlai hian he system mak tak hi thumal awlsam takin i sawi dawn nia.

Cardiac conduction system chu eng nge ni?

A awlsam zawngin, i thinlunga conduction system chu cell, node, leh electrical signal bikte inzawmkhawm a ni. Chûng zawng zawng chuan i thinlung a na reng theih nân an thawk ho a ni. In pakhatin light on turin wiring system a mamawh ang bawkin i thinlung hian a tel lo chuan a ti thei lo.

Kan thinlung thawkna control tu cell chi hnih a awm a, chungte chu:

• Conducting cells: Hengte hi electrical signal kengtu an ni. Messenger te tak te ang mai an ni.
• Muscle cells: Hengte hian thinlung inzawmna (contraction) control tu an ni. Chu chu thinlung chu a ‘pump’ tihna a ni.

Heng electrical signal te hian thinlung chu taksa pum puia thisen pump hun leh pump dan tur a hrilh thin. Traffic controller angin ngaihtuah la, thinlung chu a hun takah hna thawk reng rawh.

Engtin nge he system hian hna a thawh?

I thinlung conduction system hi heartbeat tan theihna signal petu a ni. Tin, thinlung hmun hrang hrangah engtikah nge contract tur leh engtikah nge relax tur tih a hrilh bawk. Hetianga inzawmna leh chawlh hahdamna hian thinlung leh taksa pum puia thisen kal dan a thunun a ni.

A tlangpuiin, he electrical conduction system hian heart rate chu a nghet a, a rualin a vawng reng a ni . Thisen leh oxygen tam zawk i mamawh hunah (entir nan, exercise i tih laiin) i heart rate a ti chak a, chawlh laiin i heart rate a ti hniam bawk.

Heartbeat chhunga thil thleng, step by step

Heartbeat tin hian electrical signal te chu heart conduction pathway-ah a kal zel a. Hei hi in lama hmanraw chhunga wire hmanga electric kal dan nen a inang hle. I thinlung hmun pakhat sinoatrial (SA) node an tih atanga excitation signal chhuak atanga tan a ni.

He stimulus signal hi hetiang hian a kal a:

1. Atria (thinlung pindan chunglam): He signal hi atria-ah a kal hmasa ber a. Chumi hnuah chuan atria chu contract a ni.

2. Atrioventricular (AV) node: A dawtah chuan signal chu AV node-ah a kal leh a. Hetah hian signal chu a tlai deuh a ni. A chhan chu atria chhunga thisen awm zawng zawng chu thinlung pindan hnuai lam pan turin hun pek a ni.

3. Bundle of His: AV node hnuah signal chu he His bundle zawh hian Purkinje fibers ah a kal a.

4. Purkinje fiber kaltlangin cell (Ventricles - thinlung chhungril hnuai lam) te:A tawpah chuan cell-te chuan he signal hi an dawn chuan an inzawm khawm ta a ni. Chu chu thinlung atang leh taksa pum puiah thisen pump chhuah a nih lai a ni.

Heng step te hi a inzawm khawm chuan thinlung ruh inzawmkhawmna (complete contraction of the heart muscle) a ni. I thinlung electrical conduction system hian ni khatah heng signal sang tam tak a thawn a, i thinlung chu chawlhsan lovin a thawk reng a ni. Mak a ni lo maw?

Cardiac conduction system-a thil pawimawh ber berte chu engte nge ni?

I thinlung conduction system-ah hian i heartbeat control tu specialized cell leh node engemaw zat a awm a. Anni chu:

• Sinoatrial node (SA node) ah chuan a awm a.
• Atrioventricular node (AV node) ah hian a awm a.
• Bundle of His (atrioventricular bundle) chu a rawn lang leh ta a.
• Purkinje fibers a ni

Tunah chuan heng hmun tinte hi chipchiar deuhin han thlir ila.

A rilru a buai em em a, a rilru a hah em em bawk a. Sinoatrial - SA node) .

I sinoatrial node (SA node) hi thinlunga natural pacemaker a ni. Thinlung 'boss' ang mai a ni. Lungphun tichaktu electrical impulse thawn chhuaktu a ni. A chang chuan SA node hian hna a thawk tha lo a nih chuan conduction system hnuai lam chu helper pacemaker cell angin an thawk thin.

SA node hi thinlung dinglam atrium chunglam ah a awm a. A bik takin, superior vena cava, i taksa atanga oxygen tlachham thisen thinlung thlenga phur thei vein lian tak chuan atrium a zawmna bulah.

I autonomic nervous system hian SA node hian electrical signal a thawn chak dan leh a thawn slow dan a control a ni. He nervous system peng hian i thil tih a zirin i heart rate control tu hormone a tichhuak thin. Entirnan, exercise i tih hian i heart rate a sang a, i mut laiin a tlahniam bawk.

Autonomic nervous system hian chi hnih a nei a, chungte chu:

• Sympathetic nervous system: Hei hi ‘fight or flight response’ nen a inzawm a ni. SA node a activate a, heart rate a tisang a ni.
• Parasympathetic nervous system: Hei hi ‘rest and digest response’ nen a inzawm a ni. SA node a ti slow a, heart rate a ti slow bawk.

Atrioventricular node (AV node) ah hian a awm a.

I atrioventricular node (AV node) hi i thinlung lairil hnaihah a awm a. Chu chu SA node atanga electrical signal lo chhuak chu a vawi khatnaah hun engemaw chen (second tlemte) delay-in a ti thin.

Hetianga tihkhawtlai hi a pawimawh hle a, a chhan chu thinlung (atria) chunglam chamber-a thisen zawng zawng chu an inzawm tawh loh hmain lower chamber (veins)-ah a kal vek tih a tichiang a ni.

Atria hi taksa atanga thisen dawng a, cell-a thawn chhuaktu an ni.

Bundle of His (atrioventricular bundle) chu a rawn lang leh ta a.

His bundle hi AV node atanga lo chhuak fibers (nerve cells) bundle a ni. He fiber bundle hian AV node atanga electrical signal chu a dawng a, Purkinje fibers ah a phur lut thin.

Sam bundle hi i ventricle dinglam leh veilam inthenna wall (septum)-ah a kal a. He sam bundle hian branch lian pahnih a nei a:

• Left bundle branch: Hei hian Purkinje fibers kaltlangin left ventricle ah electrical signal a thawn thin.
• Right bundle branch: Hei hian Purkinje fibers hmangin right ventricle ah electrical signal a thawn thin.

Purkinje fibers a ni

Purkinje fibers hi nerve cell bik network a ni a, rang takin i thinlung dinglam leh veilam chamber-ah electrical signal a thawn chhuak thin. Purkinje fibers hi i ventricles wall-ah a awm a, chu chu i thinlung chambers line-tu tissue chhungril layer a ni.

Purkinje fibers te hian i cell te hnenah electrical signal an thawn chuan cell te chu an inzawm khawm thin. Chumi hnuah thisen chu right ventricle atang chuan pulmonary arteries ah a luang lut a, left ventricle atang chuan aorta ah a luang lut bawk. Pulmonary arteries hian thisen chu lungah a phur a, oxygen a la thei a ni. Aorta hi i taksaa thisen kalna kawng lian ber a ni a, thinlung atanga thisen chu i taksa peng dang zawng zawngah a phur a ni.

Hêng pêngte hi engtin nge an lan?

Hengte hi a then te te an ni tak zet a ni. Entirnan, `SA` node hi millimeter 15 vel a sei (stapler pin ang vel) a ni a, a zau zawng chu millimeter 4 vel a ni. `AV` node hi millimeter 5 vel a sei leh a zau (light switch tip vel) a ni. His bundle, a hnah leh Purkinje fiber te inzawmkhawm chu thing inher ang maiin an lang niin an sawi. His bundle leh a hnah te chu thing hnah ang mai a ni a, Purkinje hrui te chu thing hnah ang mai a ni.

He system-ah hian eng harsatna nge lo awm thei?

Damdawi lam harsatna hrang hrang hian i thinlung electrical system a nghawng thei a ni. Heart conduction system lama harsatna awm hian heart rhythm lama harsatna a thlen thei .

Heart rhythm lama harsatna awm fo thin:

Thil awm dan tlangpui thenkhat chu hetiang hi a ni:

• Arrhythmia: Thinlung thawk mumal lo. Hei hian atrial fibrillation (Afib) tih natna a huam tel bawk.
• Bundle branch block: Thinlung sir khata Purkinje fibers inkharkhip. Hei hian arrhythmia a thlen thei a ni.
• Heart block: Heart atria leh ventricles inkara electrical signal transmission tihchhiat.
• Long QT syndrome (LQTS): Thinlung hi a inzawm khawm a, a pangngaia a kir leh theih nan hun a duh rei zawk. Hei hian a chang chuan syncope emaw cardiac arrest emaw a thlen thei bawk.
• Premature ventricular contractions: Thinlung a thawk hma lutuk. Hei hian palpitations emaw "missed heartbeat" emaw a thlen thei.
• Cardiac arrest: Thinlung thawk mumal lo na tak avanga lungphu chawl nghal mai. Hei hi enkawl nghal loh chuan thihna thlen thei a ni. Hei hi dinhmun hlauhawm tak a ni.

Harsatna a lan chhuah dan chu engte nge ni?

I thinlung conduction system-ah harsatna a awm chuan heng ang symptoms hi i nei thei ang:

• Thâwk harsa
• A rilru a na
• Thinlung thawk chak emaw, mumal lo emaw (palpitations) .
• Luak chhuak thei
• Luak chhuak thei
• Hnathawh hahthlak tak a ni

Hetiang symptoms i neih chuan damdawi lam thurawn lak vat a pawimawh hle.

Doctor chuan electrocardiogram (EKG) hmangin i thinlung rhythm a enfiah thei a. I thinlung electrical activity hi enfiah belh an duh chuan ni engemaw zat emaw, kar engemaw zat emaw chhung chu heart monitor vuah turin an ti mai thei che a ni. Electrophysiology study hian i thinlung conduction system chungchang thuk zawk a pe thei a ni.

Thinlung electrical system lama harsatna awmte chu damdawi leh enkawlna hmanga enkawl theih a ni a, chu chu pacemaker dahna ang chi a ni .

Engtin nge ka thinlung conduction system hi ka vawn that theih ang?

Heart rhythm lama harsatna tam tak thlentu genetic factors te hi kan thlak danglam thei lo. Mahse, i thinlung zawng zawng hrisel taka awm reng turin i pui thei a, thil tih dan hrisel tak tak zawmin . I tih theih ṭhenkhat chu hetiang hi a ni:

• I taksa rihna hrisel tak, i duh ang angin vawng reng ang che.
• Zuk leh hmuam hman tawh loh la, secondhand smoke kha pumpelh rawh.
• Damdawi hi Doctor-in a sawi ang chiah chiah ei tur a ni.
• Zu emaw, caffeine awmna emaw in kha tihtlem rawh.
• Chaw tha tak tak , thei, thlai, leh buh chi hrang hrang ei thin ang che.
• Kar khatah minute 150 tal taksa tihchak tur a ni.
• Talk therapy emaw meditation emaw ang chi hmanraw hrisel hmangin stress hi enkawl rawh.

I thinlung electrical system hi i thinlung rhythm lama harsatna i neih hma loh chuan i hre lo mai thei. Mahse heng conduction signal te hi i thinlung ti natu leh thisen kal tir thintu an ni. He system hnathawh dan hriat hian harsatna awm thei te hriatchhuah nan leh tanpuina i hmuh theih nan a pui thei che a ni.

Thu tawite hriat reng tur

Okay, chuti a nih chuan vawiina kan sawi tawh atang khan hriatreng tur pawimawh tak tak thenkhat han thlir let leh ila.

• I thinlunga cardiac conduction system hi electrical network a ni a, chu chuan i heartbeat a control a ni.
• A bulpui ber chu `SA` node, `AV` node, bundle of His, leh Purkinje fibers tih te a ni.
• He system-a harsatna awm hian heart rhythm disorder (arrhythmias) a thlen thei a ni.
• Thâwk harsa, rilru na, emaw, muhil emaw ang chi symptom i neih chuan doctor thurawn la nghal rawh.
• Nunphung hrisel (ei leh in tha, exercise, meizuk bânsan, leh stress enkawl) i zawm hian i cardiovascular system leh thinlung pum pui i hrisel thei a ni.

Chuvangin, i thinlung hi enkawl rawh. I tan hahchawlhna nei lo organ mak tak a ni!

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