Kei hea ko te pokapū vasomotor? tona uara

He tino nui te pūnaha iaia o te tinana. Ko e mo'oni, te whakawhetai ki te pera me uaua puta toto, me te hāora tuku. Te kore tēnei āhuatanga, e kore e te iwi e taea ki te ora. Ko reira haepapa hoki tenei mahi o te pokapū vasomotor tinana. I tua atu i ngā tikanga ture katoa, ko reira i roto i te roro. Ko te tino kino tona whara me he maha hohotahi ki te ora. Ko e mo'oni, te whakawhetai ki te pokapū vasomotor mai tohatoha o toto ki te okana. Ia ano wāhanga regulates mahi cardiac. Ahakoa te mana motuhake o te myocardium, kua hiahiatia tonu mana pūnaha io.

Ko te ariā o te pokapū vasomotor

faataa te ariā o "pokapū vasomotor" ko tenei ara: te reira he hanganga kikokiko, kei roto i te roro. Heoi, kia whakaaro whānui tenei wā. Tuatahi o te katoa ehara i te mea he tinana, engari he huinga o ngā, arā, o te karere kiko. Ia wahi he kawenga mō ngā mahi motuhake. Otiia, mahi tahi ratou katoa ki te whakarite e nga mahi o te pūnaha Cardiovascular. hono enei pokapū tari vasomotor kore functionally anake anatomically engari. Ko, i te muka io. Hoki te wā tuatahi i runga i te ture o te pūnaha iaia, ka mohiotia te reira i roto i te mutunga o te rau tau 19. I roto i te whakahaere i ngā kararehe kitea Ovseanicov pūtaiao e na roto i te tapahi i te kiko io kei raro colliculus, i reira he huringa i roto i te pēhanga toto. mutu physiologist: takahi o tenei hanganga ai roro kotahi oko roha, me ētahi atu here. I muri i tenei mahi ture kua kaha ako.

pokapū vasomotor Wāhi

Kei te whakapono te reira e kei te pokapū vasomotor e i roto i te oblongata medulla. Otiia ki te tango tatou ki pūkete nga hanganga katoa e pā te mahi ture o supply toto, e kore te mea katoa pono tenei whakawa. Mai muka vasomotor karere mai i te pokapū o te ua, me tona huānga whakamutunga ko te uho. Ko nga axons te tuatahi - tukanga o ngā pūtau. Kei Sami neurons i roto i te runga e toru lumbar me rei katoa wāhanga ua. Ko te tangohia ratou localization - he haona lateral. No te mea o ratou wāhi e huaina pokapū vasoconstrictor tuaiwi. Heoi, ko te hē tenei ingoa, mai kore te muka e taea ki te whakaawe, motu ke i te tahi atu wae. Kei pokapū vasomotor medulla te i roto i te ana roro 4. Ko reira he tautau o ngā pūtau io. He localization tika atu o te pokapū vasomotor - te reira raro me waenganui wahi o te fossa rhomboid. Wāhanga o neurons kei roto i te hanganga reticular.

E whai ake nei tari e pā ana ki ngā hononga ture i roto i te pokapū ko te hypothalamus me tau waenga-roro. He muka io kei e he kawenga mō ngā rerekētanga i roto i te mahi iaia. whakaaro te hono whakamutunga te ki hei te uho kaka. Ko te atu wāhi tari pūkaha mua- me orbital.

pokapū Vasomotor: whaiaroaro o te tinana

Ki te whakaaro tatou wahi katoa o te pūnaha vasomotor i te raro ake, kia tīmata koe ki neurons kei roto i te ua. haere ratou i te axons preganglionic pukuaroha (muka). e kore e taea e ki te whakahaere i to ratou ake reo enei wae, engari te tuku ratou ponana ki ētahi atu pūtau karere ki nga oko. Hoki te wā tuatahi i runga i to ratou auraa pūtaiao mohio Ovsyannikov, te kupu hanga he kitenga nui i roto i te whaiaroaro. kitea e ia e te wehenga o te roro, me te ua puta te maturuturunga iho i roto i te pēhanga toto. Heoi, etahi wa ano i muri faarahi te reira i te pēhanga toto (i raro tauanga) me te tautoko muka preganglionic takitahi e tika ana. Ko te oblongata medulla ko te pokapū karere - vasomotor. Ko reira haepapa mo te ture o te tari tuaiwi. Tona whaiaroaro ko: neurons kei roto i te pokapū, wehea ki te 2 momo. Ko te tuatahi he kawenga mō te mahi pressor (vasoconstriction). Ko te rōpū tuarua ai whakangā o endothelium. Kei te whakapono te reira e te neurons haepapa mō te vasoconstriction, taea i roto i te maha. Ko te pūtau reira i roto i te midbrain, taea meinga te pēhanga toto nui ake. Ko te neurons o te rohe hypothalamic, i runga i te anga ke, mahi rite depressants, e ko, arahi ki te whakangā o te oko toto. Te nuinga o nga weu karere haere i roto i te pokapū, kei roto i te oblongata medulla. I tua atu, honoa tika wehea wahi o axons filosilivá me hypothalamus. pānga uho mua e rua te taonga me te inhibition o te mahi o neurons kei roto i te hononga o raro.

Ko te wehenga o te pokapū vasomotor i roto i te tari

Hoatu e kawea te ture i roto i na te maha wae o te pūnaha io, ko reira taea ki te tohatoha i te pokapū tari vasomotor e whai ake nei:

1. ua. Ko nga haona lateral o te rei me te lumbar wāhanga he karihi preganglionic. haere ratou i te axons - muka.
2. Tika pokapū vasomotor. I roto i tēnei wāhanga e kei nga neurons te kawenga mō te whakangā o te endothelium me vasoconstriction.
3. Midbrain. E wātea ana i roto i tenei wāhanga Pūtau, taea meinga whāiti o te taiepa oko.
4. rohe Hypothalamic. He kawenga mō te whakangā o te kiko iaia, e pā ana ki e rua te pokapū ake, a motuhake ki ngā pūtau ua neurons.
5. MALA'E uho. Ahakoa te meka e te nuinga o nga neurons kei roto i te rohe mua, he reira mana taea o te tahi atu wāhi roro.

Ahakoa te aroaro o te 5 tari, wehea kaimātai hinengaro vasomotor ture 2 anake kaiwhakahaere. Ko ētahi o ēnei filosilivá me bulbar rohe o te muka. I roto i tona hanganga katoa atu ngā pūtau io, pa ana reo iaia. E whakaaro rua whakarōpūtanga tika.

pokapū Vasomotor: Body

Ka rite ki mohiotia te, te whakaaro matua ko te ki te whakahaere i te āhua pokapū vasomotor. Ia o ona wahi mahi ona ake mahi. Heoi, whakawhiti atu i te iti rawa kia kotahi hono arata'i ki te rangirua o nga oko toto o te tinana katoa. Tohatoha i te mahi e whai ake nei:

1. Whakahaere ngātere (tohu) i cortical me medulla wāhanga ki te taha. E pā ana tēnei ki te pānga o te neurons i roto i te oko hoko nga okana. kawea ana tēnei mahi i roto i te whakawhetai ki te muka preganglionic tuaiwi.
2. Whakatikatika o te reo iaia. I roto i te mahi noa, te tiaki ia pēhanga toto tari te i te taumata tika.
3. Whakangā me te vasoconstriction. Tika pāngia e te pokapū kei roto i te oblongata medulla.
4. Whakarite rere toto rawaka me tona tohatoha ki ia okana.
5. Thermoregulation. whakamana ana tēnei mahi e ngā rerekētanga i roto i te lumen iaia. Ratou roha kitea i roto i te taiao mahana, a ka puta here i iti te pāmahana.

hononga ki te pokapū ngakau

I tua atu i te meka e te pokapū vasomotor he kawenga mō te hōrapatanga, ngā hukihuki o kiko endothelial, reira hoki kua he pānga i runga i te uaua ngakau. Tenei whai wāhi pūtau i roto i te lateral wahi 4 fossa ana roro. Kei te mohiotia te reira e innervation o te ngakau kawea i roto i te whakawhetai ki te muka pukuaroha. I a ratou ko nga ponana o te oblongata medulla. Ka rite ki te hua o te faaitoitoraa o te ngakau. whakakitea ana tēnei e tachycardia. whai wāhi hoki te vaivai o te mahi ngakau o neurons i roto i te pokapū vasomotor. E tū ana i roto i te wahi medial. Mai i reira, haere nga tohu ki te karihi hikumārō o te karere vagus. Ahakoa te meka e tetahi mahi o te uaua ngakau he automatism, e kore te mea taea tona mahi i waho te whai wāhi o te roro.

Ture o te pokapū vasomotor

Tākiekina neurons pokapū vasomotor kei roto i te medulla, kia cortical hanganga. I muri i te katoa, ko ratou te huarahi matua o te ture o nga wehenga o raro. Ka taea e neurons Cortical meinga e rua te hekenga me te hua i roto i te mahi pokapū vasomotor. I tua atu, i reira he ano he ture pūpū. Kei te kawea te reira i roto i ki te pakohu kakī me te kikorangi te pūtahi o. Ko e tika ana ki te mechanoreceptors tenei. I runga i te mata e whakaarahia te ngātere i te vagus me depressor raru ki ngā pokapū vasomotor. I te mahi depressant taua o tenei tari whakarei te. Ka rite ki te hua, wātea oko toto, me te pēhanga toto. ai hoki vasodilation whakahohenga o te karihi o te raru vagus.

vasomotor huringa oro pokapū

I raro i te mana o ngā āhuatanga puta dysregulation. Ka rite ki te hua o te oro vasomotor rerekē pokapū. I raro i huru noa, meatia tenei e i roto i te ture pūpū. A, no te māuiuitanga Ko te takahi o te reo. Tauira e tini o nga mate iaia, atherosclerosis, te mōmonatanga. Hoki, ka taea te whakaritea he whakaiti hua ranei i āhua i raro i te mana o te raau taero (drugs antihypertensive, vasopressors).

Pānga o ngā matū i runga i Vascular Center

pānga Direct i runga i nga tikanga auau o te pūnaha iaia e taea whai matū matū i roto i te tinana. He tauira, ko te hauhā i piki i roto i te toto i roto i te hāora hē (apnea). I raro i te mana o tenei taonga e whakaongaongatia te pokapū vasomotor. I roto i ngā take kino, kore roa o te hāora e taea arahi ki pāpāngia.