Ko te wahi ringa: anatomy

takaro e alangá mo te tangata i runga, i te wāhi nui i roto i te hanganga whanaketanga o tona rite he momo. I roto i tēnei tuhinga ka titiro tatou ki tetahi wahi o te ringa tangata, me te kararehe, rawa ratou hanganga me te mahi.

Ko te mahere whānui o te hanganga o te alangá runga

Kei te pito o runga o rua nga wahi. pā ana te tuatahi whitiki arā, o te āhei me te scapula. kōhiwi o peke free - kua piri te wāhanga tuarua ki a ratou. Kei a ia ko tetahi unpaired peke. Ia slidably hono ki te kikowhiti ulnar me toropā hanga. Ko te wāhanga e whai ake nei o te ringa - tenei paraihe. ngā ratou o wheua carpal, metacarpal me phalanges.

Ko te wahi o runga o te ringa

Ko te hanganga o tenei tari ka uru mai takirua āhei me te scapula. Enei wheua o te whitiki e alangá runga whakarato hononga ngāwari o te kōhiwi kātua me te ringa noa. Kei te hono āhei i runga i te ringa tetahi ki te whaturei flat me i te tahi atu - ki te vane. Tenei wheua He maha ngā kōpiko me te pai nga korero, puta noa. Ko tōna āhuatanga mahi matua i roto i te tinana, ko te wāhi o te tahi pokohiwi i te tawhiti i te pouaka. nui faarahi tenei te whānuitanga o nekehanga o nga waewae o runga.

Ko te wahi o raro o te ringa

Bone pito free hononga kōhiwi movably hono, ka hanga i te maha: sternoclavicular, pokohiwi, tuke, radiocarpal. enei hanganga katoa i te mahere hanganga kotahi. I roto i tetahi matenga tahi o tetahi wheua wahi o te faahohonuraa e o te tahi atu. Ki te kore e mata tahi ite waku kaha, o ratou e hipokina puata wheua ngohe. Ko taua hanganga ia i roto i te capsule tahi, ki nei e piri tuhonohono me uaua.

Ētahi wāhanga o te ringa tangata i to ratou ake āhuatanga. Hei tauira, he ātete ki te era atu katoa te koromatua. e pā ana tēnei i te kaha o te tangata ki te mahi aau.

Ko te hanganga o nga ringa o kararehe momo rite katoa o chord. Kei a ia ko wehenga e toru: te pokohiwi, kikowhiti me te ringa. E pā ana ratou āhuatanga morphological me ngā rerekētanga ki te kaiao o kararehe. Ko te kupu, kua tahuri ki parirau i roto i te manu e tika ana ki to ratou kaha ki te rere wahi o runga. Kiore me shrews whiwhi kai ratou, hanga nuku i roto i te oneone. Na reira, i ratou whānui wahi keri. Māngai o te whāngote pekapeka kia urutau mō te whati kaha e tika ana ki te aroaro o taiepa kiri me maihao elongated. kararehe maikuku whiwhi ratou ingoa tika ki te aroaro o ngā horny tiaki i runga i to ratou wahi.

Ko te tikanga o te wahi o runga

wāhanga katoa o te ringa tangata, me te kararehe neke whakawhetai ki te uaua. E piri ratou ki te wheua ki tuhonohono. Uaua, hua kaupapa e alangá, ngā ki e rua ngā rōpū. He piko te alangá tuatahi. Hei tauira, te uarua, te uarua ranei ai te ringa ki te tinana. Extensors mahi ngā mahi kōaro. I roto i te tangata, i mahi i tenei mahi e nga tengi. Pakihiwi mahi i roto i ngā tohutohu ritenga. Ko tōna muka, i runga i te mata mua o te kikowhiti, he piko te ringa. A e kei te hunga i te taha ki whakamuri - i runga i te anga ke.

Ko te kiri o te ringa, he momo rerekē o receptors. Tenei ngā tairongo motuhake e hono te tinana ki te taiao. E taea e ki te whakaahua ke ki ngā momo rerekē o ponana karere pānga ratou. Ka rite ki taua, kua tukua te mōhiohio ki te rohe e tika ana o te uho roro. Ko nga muka io ara conductive i roto i tenei take. I roto i te roro, tātarihia ngā mōhiohio kei te me i te aronga whakamuri te tukua ki te tinana e mahi. e rave rahi momo o receptors kei roto i te kiri o ringa. Mechanical kite pēhanga me te pa. kite Cold me mahana te tinana mā thermoreceptors. Ko te nuinga o te kiri katoa o te ringa me maihao he tairongo ki te perception o te mamae. E hanga e ratou nociceptors.

peke Kura tika ki nga peculiarities o te hanganga He maha ngā mahi nui. Ko reira te kaha ki te rere, te hanga o te kai, te hanga wharau. Ko te āhuatanga tino mātanga kua te ringa o te tangata e hanga ana mahi, me te ko te pūtake o maha huringa kunenga.