Ke circulatory'ōnaehana ua i paa, a paa hou mai la

Circulatory'ōnaehana ( 'ole-paa, a paa hou mai la) o keʻano papa hana ana i ka manaʻo o ka hiki ke kākoʻo'-ordinated holo ana o ke koko (hemolymph) o ke kino, i hōʻoiaʻiʻo kona piha ola. Kona loa ka noi i loko o ka'ōnaehana kupu mai ka pulsation o ka naau Muscle a hoemi ai hanaʻia naʻe o nā paia o ka aorta, a me nā arteries a me nā loko o ke kino a me ka neʻeʻana Muscle. Ua mea ma ka holo amo ana o 'ona ia lŘlŘ a me ka wela launa like keʻano o ka hanaʻana no ka i alakaʻi ai a me ka metabolic kōmi. Pani 'ole hamama circulatory'ōnaehana: pehea ka mea, oko, a no ka mea, ua ano? Pane i kēia mau nīnau e e kūkākūkā i ka pauku.

Ke circulatory'ōnaehana Ua i paa ua loaʻa i loko o aneane pau invertebrates, e like me ka haahaa chordates (Amphioxus i loko o). Koko i loko o kēia mau meaola ua kena ae la ma ka ka ho'ēmiʻana o ka naʻau, a me ka "naau", e like me, a hiki i kekahi mau loa, i ke ka ho'ēmiʻana o nāʻiʻo o ke kino. A ano hiʻona - he nui nui o ke koko ma ka haʻahaʻa ka mämä holo o kona neʻeʻana.

E haapau nei i circulatory'ōnaehana ke komo ana o ka hookahi holo (iʻa a me cyclostomes) a me elua - ka poe liilii, a me ka nui (mea kolo, amphibians, manu, mammals). E kahe ana ma ka mea uuku, a me ka nui kaiapili o ke koko ma ke kamepiula hoʻololi kona haku mele 'ana, a me ka mea venous, arterial i kekahi mea. A anu-koko holoholona, a hiki i ka poʻe'ē he venous a me ka arterial a aortic naʻau, i ke koko i kela mea haʻahaʻa. Ke kūkaʻi o 'ona ma waena o ke koko a me nā'aʻaʻa o ke kino lawe mai ma ka mea o ka lahilahi capillary pā. 'Oʻoleʻa decomposition huahana ia lŘlŘ kuhikuhi i loko o nā puʻupaʻa, a me' ē kaawale ana kino.

Ke circulatory'ōnaehana ua i paa loa imperfect, akā, i waena o ka mea nona o ka paʻa circulatory'ōnaehana ka loa maikaʻi i loko o nā manu, a mammals. Nā 'elele o kēia mau papa he a mau eha-o ke keʻena o ka naʻau a me ka holo. Maʻamau, i ke arterial koko ua ole i hui pūʻia me ka venous koko. Characteristically i lawa ke kiekie puʻe. Kekahi pono - he nui ana o ke koko ma na moku (like i ka mea ia manawa i ke koko holo i loko o nā mea kolo o ka hola 22 minuke, o ka ilio - keia mea 16 kekona, a me ka 'Olu - 7,5 kekona). He mahalo i kēia mau hiʻona hiki mehana-bloodedness o kiekie ae nā holoholona laha ', e leie aku no ke kākoʻo mau kino mahana, ka nānā' ana i ka? Aneie kūlana. Nona i ka manu a me mammals a me ke kiʻekiʻe metabolic ka hoʻokōʻana.

Koko holo i loko o ke kanaka kino ua hoʻolako 'ia e contraction o ka naau, a hana e like me ka EII ni. I waena o nā aʻe ka hoʻopukaʻana i ka neʻe ana i ke koko - naehana neʻe, hoemi i ka skeletal Muscle, ka'aloʻahiʻa likeʻole i loko o nā ipu. Kekahi o nā 'ano o cardiac aayoaeuiinoe - naau kōmi. Lāʻau ikiʻai wale - he papa'āweʻaweʻa kemika palena manawa no ka arteries, a coincides me na contractions o ka naau Muscle. Kona alapine (frequency) hilinaʻi nui ma luna o na mea he nui aʻe, a me ke kino ke kaupaonaʻana, a me ka mahana moku'āina o ke kino, i ke kino ai a me ka mea naʻau stress, a no laila, ma luna o. Ka mea maʻamau naʻau ana no i kanaka makua, he 60-80 kui iho oe a no minuke. A e loli iki ana o ke koko i loko o nā kīʻaha, mai emi o 1 mm o / kek. I loko o nā capillaries o 50 knm / mau i ka nui arteries. Ka a pau holo ana o ke koko ma ke kino i ka hola 20-25 kekona. Koko höʻike lalo puʻe mea nui loa i loko o ka aorta a me ka nui arteries, a me ka mea uuku, a hiki io, ma ka puha aa koko. E hoole i ka neʻeʻana o ke koko, a pale aku i ka nohona kiwikā a pani i ka atrioventricular orifice, i ka waha o ka pulmonary artery a me ka aorta, a me ka nohona kiwikā i aia ma luna o nā paia o na aa koko nui. I ka lawa o ka contractile hana o ka naau koko ua i ko lakou kupikipikio.

E like me 'oe ke ike, i ka circulatory nenoaia ua i paa, a paa hou mai la i loa kūikawā hiʻona i ua ike hoi, e ike i na erudite, aʻaʻole pono ke kanaka.