Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Hanyar gani tana barin sararin samaniya (ƙwallon ido) ta hanyar tashar gani, tana gudana ta hanyar post-medially zuwa chiasm na gani, inda akwai wani ɓangare na ƙetare (ƙetare) na fibers daga filayen gani na lokaci (nasal hemi-retina) na idanu biyu. Adadin zaren decussating ya bambanta tsakanin nau'ikan, kuma yana da alaƙa da matakin hangen nesa da nau'in ke morewa. Yawancin axons na jijiyar gani sun ƙare a cikin kwayar halittar geniculate ta gefe daga inda ake sake watsa bayanai zuwa cortex na gani, yayin da wasu axons suka ƙare a cikin kwayar pretectal kuma suna da hannu cikin motsin ido. Sauran axons suna ƙarewa a cikin kwayar suprachiasmatic kuma suna da hannu wajen daidaita yanayin bacci-farkawa. Diamita yana ƙaruwa daga kusan 1.6 mm a cikin ido zuwa 3.5 mm a cikin kewayon zuwa 4.5 mm a cikin sararin samaniya. Tsawon sassan jijiyar gani sune 1 mm a cikin duniya, 24 mm a cikin kewayen, 9 mm a cikin tashar gani, da 16 mm a cikin sararin samaniya kafin shiga cikin chiasm na gani. A can, ɓarna na ɓarna ya faru, kuma kimanin kashi 53% na fibers sun ƙetare don samar da hanyoyin gani. Yawancin waɗannan zaren suna ƙarewa a cikin jikin geniculate na gefe.Dangane da wannan ilimin lissafi, ana iya rarraba jijiyar gani zuwa sassa huɗu kamar yadda aka nuna a hoton da ke saman wannan sashin (wannan ra'ayi yana sama kamar kuna kallon cikin sararin samaniya bayan an cire saman kwanyar): 1. kai na gani (wanda shine inda ya fara a cikin kwayar ido (duniya) tare da zaren daga retina; 2. bangare na sararin samaniya (wanda shine bangare a cikin sararin samaniya). 3. ɓangaren intracanicular (wanda shine ɓangaren da ke cikin canal na kashi da aka sani da canal optic); da kuma, 4. ɓangaren cranial (ɓangaren da ke cikin ramin cranial, wanda ya ƙare a chiasm na gani).Daga jikin geniculate na gefe, fibers na radiation na gani suna wucewa zuwa cortex na gani a cikin lobe na kwakwalwa. A takaice dai, zaren da ke ɗauke da bayanai daga filin gani na sama na gaba yana ratsa madauki na Meyer don ƙare a cikin gyrus na harshe a ƙasa da fashewar calcarine a cikin...  Tambaya: Abin da ke haɗa ido da kwakwalwa kuma yana ɗaukar abubuwan da aka kafa ta hanyar retina
jijiyar gani