Jikin jikin mutum ba shi da kyau. Amma, kamar yadda Charles Darwin yayi jayayya, jiki yana da komai marar amfani da kuma sauran sassa wanda mutum ya gaji a cikin juyin halitta.
Tabbas, irin waɗannan maganganun za a iya ƙalubalanci, amma gaskiyar gaskiya abu ne mai ban tsoro. Kuma muna ba da shawara cewa kayi sanarda kanka da wasu daga cikinsu. Zai yiwu a nan gaba waɗannan ɓangarorin jiki zasu ɓace gaba ɗaya.
1. Gashi akan jiki
Giraranmu suna kare idanunmu daga gumi. Kuma ga mutane, gashin ido yana taka muhimmiyar rawa wajen jawo hankali ga kishiyar yanzu. Amma ga sauran gashi a kan jikin mutum, ba a tabbatar da muhimmancin aikin su ba, kuma ba za su taka rawa ba.
2. Cunkosan paranasal
Halin da ake kira paranasal sune cavities tare da ramuka a fatar ido na kwanyar. Abu mafi mahimmanci na sinus shine don rage nauyi daga ƙasushin ido da kuma haifar da haɗuwa a cikin furcin sauti.
3. Yokoki kunnen kunne
Wasu dabbobin, irin su zomaye da karnuka, zasu iya motsa kunnuwan su tare da tsarin tsari. Mutumin yana da irin tsokoki irin wannan, wanda, a gaskiya ma, ba sa ɗaukar wani aiki a kansu.
4. Sihiri hikima
A baya can, mutane sunyi amfani da tsire-tsire don samun isasshen adadin kuzari ga jiki. A yau, kawai kashi 5 cikin dari na mutane suna amfani da hakora marasa amfani, wanda mafi yawa sukan kawo rashin jin daɗi da matsaloli.
5. Abun ƙussa
Wani ɓangare na haƙarƙarin ƙwayar jijiyar jiki ita ce tazarar ƙwayar cuta na yankin cervico-thoracic a cikin nau'i na haɗari, wanda ya bayyana a cikin kashi 1 cikin dari na yawan mutanen duniya. Mafi mahimmanci, alama ta musamman ga mutum daga dabbobi ne. Sau da yawa irin wannan anomaly yakan haifar da matsalolin kiwon lafiya, yawancin lokaci tare da jijiyoyin jiji da arteries.
6. Gwanon dabino mai tsawo
Jigon dabino mai tsawo ya karu daga gwiwar hannu zuwa wuyan hannu kuma bai halarci kashi 11 cikin dari na mutane ba. Wasu masanan kimiyya sun yi imanin cewa rashin wannan tsoka yana rinjayar ikon kamawa kuma yana iyakance ikon aikin mutum. A gaskiya, irin wannan ka'idar ba a tabbatar da ita bane kawai zato.
7. Namiyoyin maza
Maza da mata suna da ƙuƙumi, domin a yayin da ake ci gaba da tayin a cikin mahaifa a farkon matakan yaron ba shi da jima'i. Saboda haka, maza da mata suna da nau'i. Amma saboda rashin matakin da ake bukata na prolactin don ƙarfafa lactation ba zai iya samar da madara ba.
8. Kwayoyin hawan gashi
Wadannan tsokoki, wanda ke bayan gashin kan jikin mutum (sai dai gashi a kan chin da pubis), amsa ga canji a cikin yanayin kewaye, saboda haka ya sa "fata fata" tare da gashin tsuntsu. Irin wannan kullun ya je wurin mutum daga dabbobin da ba kawai zai iya daidaita yanayin jiki ba, amma har ma "bristle da fushi".
9. Appendicitis
Wannan kunkuntar tsofaffin tsalle-tsalle, shafi na wannan cecum, ya zama wuri na musamman don narkewar cellulose lokacin da cin abinci na mutum ya ƙunshi kwayoyin halitta fiye da furotin dabba.
10. Tashin na uku riba
Mu danginmu mafi kusa - dabbobi, jimutsiyoyi da gorillas - suna da karin haɗari. Yawancin mutane suna da nau'i-nau'i nau'i nau'i 12, ko da yake 8% na manya na da goma sha uku.
11. Yatsun
Masana kimiyya sun gano cewa ana amfani da mutane don tafiya da daidaitawa tare da tsakiyar kafafunsu. Yau, mutane da yawa suna amfani da babban yatsun don daidaitawa, suna canza tsakiyar ma'auni a ciki. Wannan yana nufin cewa mutum yana saba dogara da yatsun ƙafa don kula da jiki. Gaskiya ne, mutanen da kwanan nan ba su da hankali ga wannan. Idan wannan yanayin ya ci gaba, to mutum bazai bukaci yatsunsu a kafafu ba.
12. The tailbone
Ana kuma kira tailbone da ɓangaren wutsiya daga wutsiya, wanda mutumin ya ɓace yayin juyin halitta. Mambobi suna amfani da wutsiya don daidaitawa da sadarwa - mutane ba sa bukatar coccyx.
13. Fushin na uku
Mahaifin magabata na tsuntsaye da dabbobi zai iya samun membrane wanda ya kare idanu. Mutum yana da wani ɓangare na karni na uku a kusurwar ido na ciki.
14. tubercle na Darwin
Ƙananan tubercle a kan curl na jigilar wani lokaci yakan faru a cikin mutane. Darwinov bugorok ya sami mutum da wasu nau'o'in birai daga magungunan farko da dabbobi masu shayarwa tare da kunnuwan kunnuwa. Ma'anar ita ce sauran irin wannan kunnen.
15. Muscle mai wuya
Ƙananan tsofaffin ƙwayar yana samuwa a ƙarƙashin kafada daga farkon haƙarƙari zuwa ga mahaifa. Ƙaƙƙarmin ƙwayar ƙwayar zai zama da amfani ga mutum idan har yanzu muna tafiya a kan hudu. Wani ba shi da irin wannan tsokoki, amma wani zai iya yin alfahari gaba ɗaya a bangarorin biyu na jiki.