Ngā Tauira Pātai e Matapaki ana i te Hanganga me te Mahi i roto i te Pūnaha Io o te Tangata
Ko te pūnaha io o te tangata tētahi o ngā pūnaha tino uaua, tino ora hoki o te tinana. Koia te kawenga mō te whakahaere me te whakarite i ngā mahi katoa a te tinana, mai i te nekehanga ki ngā tukanga whakaaro me ngā kare ā-roto. I roto i tēnei tuhinga, ka matapakihia e mātou ētahi tauira raruraru e pā ana ki te hanganga me te mahi a te pūnaha io o te tangata, me ō rātou otinga. Mā tēnei huarahi ka āwhina i ngā ākonga ki te mārama ki te mahi a te pūnaha io, ā, ka āwhina hoki i a rātou ki te whakarite whakamātautau.
Pātai 1: Hanganga Taketake o te Pūnaha Io
Pātai:
Whakamāramahia pototia te hanganga taketake o te pūnaha io o te tangata.
Kōrero:
E rua ngā wāhanga matua o te pūnaha io o te tangata: te pūnaha io matua (CNS) me te pūnaha io taha (PNS).
1. Te Pūnaha Io Matua (CNS):
– Roro: Kei roto i te angaanga, ā, koia te pokapū whakahaere o te tinana.
– He maha ngā wāhanga o tēnei pūnaha, pērā i te roro nui, te cerebellum, me te take o te roro.
– Ko te roro nui te kawenga mō ngā mahi pēnei i te whakaaro, te mahara, me ngā kare ā-roto.
– Ko te roro iti te kawenga mō te taurite me te taurite.
– Ko te take roro te kaiwhakahaere o ngā mahi matua pēnei i te manawa me te tere o te ngakau.
– Taura Tuaiwi: Ka toro atu i te roro ki te tuara o raro, hei ara whakawhitiwhiti kōrero i waenga i te roro me te tinana.
2. Pūnaha Io o te taha (CNS):
– He mea tito mai i ngā muka io e horapa puta noa i te tinana.
– Kua wehea ki te pūnaha io tinana (e whakahaere ana i ngā uaua tūao) me te pūnaha io motuhake (e whakahaere ana i ngā mahi aunoa pēnei i te nakunaku me te manawa o te ngākau).
Pātai 2: Te Mahi a ngā Neuron
Pātai:
He aha ngā wāhanga o te neuron, ā, me pēhea te mahi a ia wāhanga?
Kōrero:
Ko ngā neuron ngā waeine taketake o te pūnaha io, ā, ko rātou te kawenga mō te tuku kōrero puta noa i te tinana. Ko ngā wāhanga o te neuron ko:
1. Ngā Dendrite: Ngā peka iti e whiwhi ana i ngā tohu mai i ētahi atu neuron ka tuku atu ki te tinana pūtau.
2. Tinana Pūtau (Soma): Kei roto te karihi me ētahi atu whekau e whakahaere ana i te mahi a te pūtau.
3. Ākona: He muka roa e kawe ana i ngā hikohiko mai i te tinana pūtau ki ētahi atu io, ki ngā pūngao rānei pērā i ngā uaua.
4. Te Pūtake o te Ākona: Ko te pito o te ākona e kawenga ana mō te tuku i ngā neurotransmitter ki roto i te synapse.
5. Synapse: Ko te āputa i waenganui i te pito o te axon me te neuron e whai ake nei, te wāhi e puta ai te whakawhitiwhiti matū mā roto i ngā neurotransmitters.
Pātai 3: Te Tikanga Tuku Iho o te Io
Pātai:
Whakamāramahia me pēhea te tuku i ngā akiaki o te io mai i tētahi neuron ki tētahi atu.
Kōrero:
He tukanga hikohiko te tuku i ngā irahiko o te io e uru ana ki ngā panonitanga o te utu hiko i te taha o te kiriuhi io. Kei roto i tēnei tukanga:
1. Te Whakaiti i te Poraira: Ina whakaohokia he neuron, ka tuwhera ngā awa ira konutai i roto i te kiriuhi o te neuron, ka tere te tomo o ngā ira konutai ki roto i te pūtau, ā, ka pai ake te āhua o roto o te pūtau.
2. Te Whakapūmautanga Anō: Kia tae ki te tihi o te pūmanawa mahi, ka tuwhera ngā awaawa katote pāhare pākawa, ā, ka wehe atu ngā katote pāhare pākawa i te neuron, ka whakahokia mai te utu kino i roto i te pūtau.
3. Pūmanawa Mahi: Ka neke tēnei panonitanga o te utu i te taha o te axon hei iri hiko.
4. Te Tukunga Pūnaha: Ina tae te hihiri ki te pito o te axon, ka tukuna ngā neurotransmitters ki roto i te synapse, kātahi ka herea ki ngā kaiwhakawhiwhi i te neuron e whai ake nei, ka puta he pūmanawa mahi hou.
Pātai 4: Pūnaha Io Motuhake
Pātai:
He aha te rerekētanga i waenga i te pūnaha io pūngāwerewere me te pūnaha io parasympathetic?
Kōrero:
E rua ngā wāhanga matua o te pūnaha io motuhake, arā, ko te pūnaha io pukuaroha me te pūnaha io parapumeha, e mahi tahi ana rāua hei pupuri i te homeostasis.
1. Pūnaha Io Aroha:
– E mōhiotia ana ko te pūnaha "whawhai, rere rānei" e whakahohehia ana i ngā wā taumaha, ohorere rānei.
– Ka whakanui ake i te tere o te manawa, te whānui o ngā kamo, me te tukunga o te hukahuka mai i te ate.
– Ka ārahi i te rere o te toto mai i te ara nakunaku ki ngā uaua angaiwi.
2. Pūnaha Io Parasympathetic:
– E mōhiotia ana ko te pūnaha "okiokinga me te nakunaku" e whakahaere ana i ngā mahi a te tinana i te wā okiokinga.
– Ka whakaiti i te tere o te manawa, ka whakawhāiti i ngā kamo, ā, ka whakaoho i te mahi nakunaku.
– Ka pupuri i te mahi tonu a te tinana, ā, ka tautoko i te whakaora i te pūngao.
Pātai 5: Ngā Mate o te Pūnaha Io
Pātai:
Whakahuatia, ā, whakamāramahia hoki ngā mate e rua ka pā ki te pūnaha io.
Kōrero:
Ka pāngia te pūnaha io e ngā mate maha e pāngia ai tana mahi. Ko ētahi tauira o ēnei mate ko:
1. Te whiu:
– Ka puta ina motuhia ohorere te rere o te toto ki tētahi wāhanga o te roro, nā te mea i aukatia, i pakaru rānei te uaua toto.
– Ka pā he kino tuturu ki ngā pūtau roro mēnā kāore e rongoātia tonutia.
– Ko ngā tohu ko te ngoikore ohorere i te taha kotahi o te tinana, te uaua ki te kōrero, me te pōhēhē.
2. Te mate a Parkinson:
– He mate pūnaha io tēnei e pā ana ki te nekehanga.
– Nā te ngaromanga o ngā neuron e whakaputa ana i te dopamine i ētahi wāhi o te roro.
– Ko ngā tohu ko te wiri, te pakari o ngā uaua, te puhoi o te nekehanga, me te kore taurite.
Mā te mārama ki te hanganga me te mahi a te pūnaha io, ka taea e tātou te mārama ake ki tōna uauatanga me tōna hiranga i roto i te oranga o ia rā. He tūāpapa nui hoki tēnei mātauranga i roto i ngā mara hauora me te hauora hei rongoā i ngā mate maha pea. Ko te kaupapa o tēnei tuhinga he āwhina i ngā ākonga ki te whakarite i a rātou anō mō ngā pātai e pā ana ki te pūnaha io o te tangata, me te whakarato māramatanga ki te āhua o te pupuri a tēnei pūnaha i te taurite o tō tātou tinana.
