I kut leh ke ruh (muscle) te kha han ngaihtuah teh. I duh angin i sawn thei a, i ben thei a, i hrual thei bawk. Chu chu chutiang taksa ruhte chu i thunun tihna a ni. Mahse, chaw chu i ril kal tlanga a kal dan te, i thisen kal tlanga thisen kal dan te, i thawk laiin boruak a thunun dan te i ngaihtuah ngai em? Heng thilte hi i ngaihtuah lo mai thei. Chutiang bawkin kan taksaah hian kan thunun theih loh muscle chi khat bik a awm a, mahse chu chuan kan taksa dam khawchhuahna atana thil pawimawh tak hna tam tak a thawk a ni. Vawiin hian chu silent worker, chu chu smooth muscle chungchang kan sawi dawn a ni.
He smooth muscle hi eng nge ni?
A awlsam zawngin sawi ila, smooth muscle hi kan taksa peng hrang hrang leh thisen kalna kawng (vascular systems) bang (wall)-a awm, kan hriat reng avanga kan control theih loh (operate automatically) chi khat a ni.
Hei hi microscope hnuaia a lan dan avang hian "smooth" an ti. Kan kut leh ke (skeletal muscles)-a kan control thin muscle te hi microscope hmanga kan en chuan striated angin a lang. Mahse heng muscle te hian chutiang striations chu an nei lo va, an hmel chu a smooth hle. Chuvang chuan chutianga an tih chu a ni.
Kan taksaah hian muscle chi thum a awm a. Heng pathum inthlauhna hriatthiamna hian smooth muscles danglamna chu a ti chiang lehzual a ni.
| Muscle chi hrang hrang | Thunun theih a ni em? | Hmun hrang hrang |
|---|---|---|
| Skeletal Muscle a ni | Awle. Kan duh angin kan thunun thei a ni. (Thil duhthusam) . | Skeletal system nena inzawm. (e.g. kut, ke, kawr) . |
| Cardiac Muscle a ni | No. A activate nghal vek a ni. (A duh loh zawng) . | Thinlung chhungah chauh awm. |
| Smooth Muscle a ni | No. A activate nghal vek a ni. (A duh loh zawng) . | Internal organ leh vascular system-ah te. (e.g. thisen kalna kawng, intestine, uterus) . |
I hmu em, skeletal muscle tih loh chu chi hnih hian kan thunun lohvin hna an thawk a ni. Mahse cardiac muscle hi thinlungah chauh hmuh tur a awm. Smooth muscle hi taksa pum puia chhungril peng tam takah ngawi renga thawktu a ni.
Taksaah hian khawiah nge heng smooth muscle te hi an awm?
Hengte hi ruang hmun tinah deuhthaw hmuh tur a awm tih hi a dik lo ang. An hmuh theihna hmunpui thenkhat chu hetiang hi a ni:
- Thisen kalna kawng: Hengte hi thisen kalna kawng leh thisen kalna kawngkhar chhunga thau awmte an ni a, chu chuan i taksa pum puiah thisen a phur a ni. Thisen sang control nan leh taksa peng hrang hrangah thisen pump turin contract leh relax an ni.
- Digestive system: Hengte hi i chaw kawng atanga i chaw kawng (i intestine lian ber) thlenga kal thin organ te an ni. Kan ei zawh chuan heng muscle wave peristalsis an tih te avang hian chaw chu i intestines ah a kal kual thin. Hetiang kalphung hi peristalsis an ti a.
- Airway: Hengte hi lung chhunga boruak phurtu boruak kalna kawng te tak te bang-ah pawh hmuh tur a awm bawk. Thâwk awlsam zawk nan heng kawngte hi tihzauh leh tizau turin an pui a ni.
- Urinary system: Heng smooth muscles te hi bladder wall-ah te hmuh tur a awm a. Anni hian zun a khat hunah bladder a tizau a, zun a chhuah chuan a contract a ni.
- Reproductive system: Hmeichhia nausen pum (uterus wall) hi taksa ruh (smooth muscle) atanga siam a ni ber. Heng taksa ruhte hian nau neih laiin contraction (dilation) a thlen thin. Mipa reproductive system-a hnathawh hrang hrangah pawh an thawhhlawk hle bawk.
- Mit: Iris-a ruh (smooth muscles) te hian i mitmeng lian leh te a thunun a, chu chuan i mit chhunga êng lut zat a thunun a ni. Tin, chung leh hnuai lam i en hian i mit focal length pawh an thlak danglam thei bawk.
- Vun: I vawt emaw, i hlauhthawn emaw chuan i sam chu "a ding chhuak" thin a ni lawm ni? Chu chu i vunah sam bul hnaia ruh hring te te te chu a inzawm khawm a, chu chuan sam chu a ding nghet ta a ni.
Smooth muscles-a thil thleng ber berte chu engte nge ni?
A chunga kan sawi takte hi i en chuan hengte hnathawh dan hi i hrethiam mai thei. Tlem chiang deuhin sawi ila.
1. Channel hrang hrangte zau zawng control
Tui pipe hi han ngaihtuah teh. Pipe zau zawng thlak danglamin tui tlan chakna leh pressure kan control thei a ni. Chutiang bawkin kan thisen kalna kawng leh thawkna kawng ang chi thilte zau zawng (diameter) pawh heng ruhro (smooth muscles) te hian a thunun a ni.
Entirnan, exercise i tih hian i taksa ruhte hian oxygen leh nutrient tam zawk an mamawh a ni. Chu hmuna thisen petu thisen kalna kawngkhar (smooth muscles) te chu a hahdam a, chu chuan thisen kalna kawngte chu a tizau ta a ni. Hei hian thisen tam zawk a luang lut thei a ni. Hetiang kalphung hi thisen sang control nan pawh a pawimawh hle.
2. Thil phurh chhuahna tur
Heng taksa peng hrang hrangte hian kan taksa peng hrang hrang tube ang chi chhungah hian hmun khat atanga hmun dangah thil a kal tir thei a ni. Entirna tha ber chu chaw ei leh in (digestive system) hi a ni. Kan ei zawh chuan chaw chu chaw kawng (esophagus) atanga pum thlengin a kal a, chuta tang chuan heng taksa peng (smooth muscles) te rhythmic contractions (peristalsis) avang hian intestines kaltlangin anus thlengin a kal a ni. Hetiang kalphung hi a tawp chuan chaw ei (digestion) chu a tawp vek a ni.
3. Kawngkhar vengtu hna thawk (Gatekeeping) .
Taksa hmun thenkhata smooth muscle te hi a tlangpuiin nghet taka khar (contracted) a ni a, a tul hunah chauh hawn (relax) a ni. Hengte hi sphincter kan ti a.
- Bladder sphincter: Hei hi zun chhuahna kawngkhar khar tu ruh a ni. Bladder a khat chuan thluak chu zun a ngai tih hriattir a ni a, kan inpeih chuan he ruh hi a relax a, zun a chhuak ta a ni.
- Anal sphincter (anus): He taksa peng vek hian bawlhhlawh kal dan a thunun a ni.
Chûngte chuan kawngkhâr ang maiin hna an thawk a, a hun takah chauh thil a chhuak thei a ni.
Eng natna nge smooth muscles a nghawng?
Organ dang zawng zawng ang bawkin heng smooth muscle te hi natna leh dinhmun hrang hrangin a nghawng thei a ni. Chung zinga ṭhenkhat chu:
- Anti-smooth muscle autoantibodies: Hei hi kan taksa chakna (immune system) hian kan taksa peng (smooth muscles) te hi a tihsual palh a ni. Kan in security guard-in hmelma anga min tihsual a, min rawn beih ang mai a ni. Hetiang dinhmun hi autoimmune hepatitis ang chi autoimmune natna nei te tan a awm fo thin.
- Muscular dystrophies: Hei hi natna rochun pawl a ni a, chu chuan taksa ruhte chu a chak lo zauh zauh a, hun kal zelah hna a thawk thei lo.
- Muscle spasms: Smooth muscle te hi thunun theih lohvin nasa takin a inzawm (contract) nghal thei.
- Vasospasm: Hei hian thisen kal a tibuai thei.
- Thluak lam natna: Asthma hi a entir tha hle. Asthma vei te hian thawk harsatna an tawk thin a, a chhan chu thawkna kawng chhunga thau smooth muscle te chu a nghet nghal vek a ni.
- Visceral myopathies: Heng natna chi hrang hrang zingah hian taksa peng hrang hrang (visceral) ruh (smooth muscles) te a nghawng a ni. Genetic factors avanga lo awm an ni fo a, bladder leh large intestine ang chi hmun an nghawng chuan nunna atana hlauhawm thei an ni.
Eng nge a lan chhuah dan?
Taksa pum puiah hian smooth muscle hi hmuh a nih avangin, a harsatna a awm chuan a lan chhuah dan chu a awmna hmun leh chu ruhte hnathawh dan azirin a danglam ang.
- Thisen sang (Blood pressure abnormalities): Thisen kalna kawng (smooth muscles) te hian hna a thawk tha lo a nih chuan thisen sang a awm thei a, a nih loh leh thisen sang a tlahniam nghal a, fainting (low blood pressure) a thlen thei bawk
- Chaw ei \ha lo: Intestines-a smooth muscles te hian hna an thawk tha lo a nih chuan ei tur chu hmalam pan zelin a tang thei a ni. Hei hian pum na, pum na, leh chaw ei kham ang chi symptoms a thlen thei a ni .
- Zun harsatna: Bladder muscle te a chak lo a nih chuan i zun tha thei lo emaw, i bladder i khar vek thei lo emaw a ni thei.
Hetiang symptoms tam tak hi a awm thei a, a chhan chu smooth muscle hi taksa system tam takah a tel ve a ni. Heng symptoms chungchangah hian rinhlelhna i neih chuan a tha ber chu i doctor hmu a, sawipui hi a ni. A enfiah thei che a, a tul chuan specialist hnenah a refer thei bawk.
Heng smooth muscles te hi kan taksa peng pakhat, ngawi rengin, hmuh lohvin, hna pawimawh tak thawktu an ni. An hnathawh that chhung chuan an awm tih pawh kan hre reng lo. Mahse an hnathawh danah danglamna tlem a awm chuan kan taksa kalphung zawng zawng a nghawng thei a ni. Chuvangin heng silent workers te hi kan fimkhur a pawimawh hle a ni.
Take-Home Thuchah a ni
- Smooth muscle hi muscle chi khat a ni a, chu chu kan hriat chian theih loh, automatic-a thawk thei a ni.
- Chungte chu chhungril peng hrang hrang, thisen kalna kawng, chaw ei kawng, thawkna kawng, zunthlum, leh nausen pum (uterus) bangah te a awm a.
- Chûngte chuan nunna atâna hna pawimawh tak tak tam tak an thawk a, chu chu thisen sang control te, ei tûr phurh chhuah te, leh thawk tûra ṭanpui te hi a ni.
- Heng taksa peng hrang hranga harsatna a awm hian a natna lan chhuahna chu taksa peng natna (organ) a nghawng danah a innghat a ni.
- Symptom danglam tak tak i neih emaw, i taksa hnathawh danah rinhlelhna i neih chuan doctor rawn nghal vat a pawimawh hle.
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