ʻO ke kino o ke kanaka a me kāna hoʻolālā paʻakikī i ka poʻe ʻepekema a me nā mea noiʻi no nā kenekulia. ʻOiai ua ʻike nui mākou e pili ana i nā hana o nā ʻāpana like ʻole a me nā ʻōnaehana, aia nō kekahi mau mea pohihihi e hiki ʻole ke hoʻoholo ʻia. ʻO kekahi o kēlā mau mea pohihihi inā he mau nipple nā kāne - he mea hoihoi i hoʻonāukiuki i ka poʻe loea no nā makahiki.
ʻO ka mōʻaukala, ʻo ka nīnau no ke kumu i loaʻa ai i nā kāne nā nipples ua hoʻāla mai i nā manaʻo like ʻole a me nā kuhiakau. No ka hoʻomālamalama ʻana i kēia ʻano, ua ʻimi nā mea noiʻi i ka embryology a me nā genetics e wehe i nā kumu kumu.
ʻO ka ulu ʻana o nā embryos mammalian ke kī i ka hoʻomaopopo ʻana i ke ola o nā nipples i nā kāne ʻelua. I ka wā mua o ka hoʻomohala ʻana, ma mua o ka hoʻoholo ʻana i ka moe kolohe, aia i loko o ka blueprint olaola ka mea hiki ke hoʻokumu ʻia ka nipple. ʻO ka heleʻana o ka Y chromosome e hoʻoulu i ka hoʻokuʻuʻana o ka testosterone, e alakaʻi ana i ka uluʻana o nāʻano kāne. Eia naʻe, i kēia manawa ua hana mua nā nipples, no laila aia nā nipples i nā kāne a me nā wahine.
Eia kekahi, ʻoi aku ka like o nā embryos kāne a me nā wahine ma mua o nā nipples. Nui nā ʻāpana a me nā hiʻohiʻona ʻē aʻe, e like me ke ʻano o ka pelvis a me ka larynx, i hoʻomaka mua ʻia me ka ʻole o ka hoʻokaʻawale ʻana ma waena o nā kāne. Hiki ke hoʻohālikelike ʻia kēia evolutionary overlap ma waena o nā kāne a me nā wahine i kahi hana genetic maʻamau i kaʻana like ʻia e nā kānaka āpau.
He mea kūpono hoʻi e hoʻomaopopo i ka lawelawe ʻana o nā nipples i kumu nui no nā wahine - ka hānai ʻana. Mai kahi hiʻohiʻona olaola, pono i nā wahine ke loaʻa nā nipples hana i mea e hānai ai i nā keiki. Eia nō naʻe, no nā kāne, ʻaʻohe kumu ʻike ʻia o nā nipples. ʻAʻole loaʻa iā lākou nā mammary glands a i ʻole ducts e pono ai e hana i ka waiū. No laila, ke waiho nei lākou i ke koena o nā hale me ka manaʻo ʻole physiological.
ʻOiai he mea kānalua paha ka noho ʻana o nā nipples kāne, he mea nui e hoʻomaopopo he koena wale nō ia o kā mākou ulu ʻana. ʻO ka mea nui, he huahana ia o kā mākou genetic makeup a me ka hoʻolālā like ʻana o ke kino kanaka.
ʻOiai nā wehewehe ʻepekema, lawe pinepine nā nipples kāne i nā manaʻo nani a me ka stigma kaiapili. ʻO nā hiʻohiʻona o nā kāne kaulana e ʻaʻahu pono ʻole a hōʻike paha i kā lākou nipples i mua o ka lehulehu ua hoʻāla i ka ʻōlelo a me ka hoʻopaʻapaʻa tabloid. Eia naʻe, ke ulu nei nā loina kaiapili a me nā kamaʻilio e pili ana i ka ʻae ʻana o ke kino a me ka ʻike pilikino.
ʻO nā mea a pau, ʻo ka mea pohihihi o ke kumu i loaʻa ai nā nipples i nā kāne i ke kaʻina paʻakikī o ka ulu ʻana o ka embryonic a me ka genetic makeup. ʻOiai he mea ʻē paha ia, he hōʻike ia i ko mākou ʻano maʻamau ma ke ʻano he kanaka. Ke hoʻomau nei mākou i ka wehe ʻana i nā mea huna o ka biology, he mea koʻikoʻi ka hoʻoulu ʻana i kahi kaiāulu ʻoi aku ka hoʻomanawanui a me ka hui pū ʻana, kahi i ʻike ʻia ai ka noho ʻana o nā nipples kāne ma ke ʻano he ʻano kūlohelohe a me ka liʻiliʻi o ke ʻano kanaka.
Ka manawa hoʻouna: Oct-28-2023