Al'aurar dabbobin ruwa: description

Dolphins ko da yaushe ya sa gaske sha'awa cikin adam hali da kuma su tsarin fasali. Masana kimiyya binciki dukkan sassa na dabba jiki, ciki har da al'aurar nazari dabbobin ruwa. A halin yanzu, wannan topic ne bincika a wasu daki-daki, kuma da an rufe a cikin wallafe-wallafe.

Al'aurar dabbobin ruwa: tsarin fasali na mace

A mãtã, akwai guda da dabbar dolfin urogenital Musulunci, wanda gudanar a layi daya zuwa ciki. Shi ne kuma hanya daga tsuliya. A gaban wani ɓangare ta hanyar da m fibrous connective nama da shasshafa dan tsakar ta fito, wanda yana da kyau ci gaba. Ya cavernosum kuma m albuginea.

Bãya gare shi akwai mafita urination, kadan m zuwa tsuliya bude shi ne kunkuntar pudendal kogon. A waje azzakari dabbar dolfin mãtã - a ƙanana da manyan labia.

Nan da nan bayan al'aura bude daga cikin farji matsakaicin diamita yana faɗaɗa. Kusa da ƙofar akwai wani jam'i na tsaye folds, wanda a hankali ya ke ragẽwo zuwa ga tsakiyar azzakari.

A tsakiyar tsaye folds bace, da kuma karamin yanki na samu mai gangara folds form kira madauwari.

Afalina yana daga 2 zuwa 4 manyan madauwari pleats shirya a kan saman farji. Kusa da cervix ne biyu uku-santimita-Musulunci kira psevdosheykoy tare da wani ƙunci ta bude kama real cervix.

Its raya bango a hade tare da gaban bango wannan mahaifa shi siffofin da wani masallaci inda maniyyi soma. A wannan jam'iyya ya yi daidai a afaliny daga 6 zuwa 10 milliliters na maniyyi.

Irin wannan smermopriemnik morphologically saba da dabbobi iya samu nasarar haifa a cikin marine yanayi. Lokacin da dabbar ta hanyar canjin, namiji yana shiga cikin wannan jam'iyya jikinka. Da zarar aka cire, psevdosheyka rage tsoka seawater zuwa spermotaziodam ba isa, ko da sun mutu. Bata da wannan fatar a mace dabbobin ruwa ba su da samuwa.

Jima'i fasali na maza

Gonads dabbobin ruwa bambanta da gaban namiji perineum, tsuliya raba fitar da jima'i Musulunci.

Dolphins ba Kwalatai (Scrotum), testes wuri wuri - ciki. A zazzabi na 37 digiri Celsius da dabbar dolfin jiki spermatogenesis faruwa kullum, da m zazzabi ga tsari ne 38 digiri.

Don kauce wa dumama testes faru ne daga aikin karfi wutsiya tsokoki, da yanayi ne Ya halitta a makwancin gwaiwa countercurrent zafi musayar tsarin kira inguinal plexus.

A venous jini yana yiwuwa a kwantar a cikin tsari na wurare dabam dabam a kan mayar da wutsiya filafilin kifi, sa'an nan ta shiga cikin venous plexus inguinal. Akwai chilled jini gudanar ta hanyar da jijiyoyinmu located kusa da wani jijiya a cikin inguinal plexus. Saboda haka, jini shigar da testes da ɗan sanyaya da zafi musayar matakai a cikin abin da sanyaya kunna venous da jijiya jini dumi.

A tsarin da testes

A siffar na testes a cikin dabbar dolfin elongated, kusan cylindrical. Top testes kewaye da santsi albuginea, wanda aka bonded zuwa fibrous.

Testis yana da wani hali lobed tsarin, amma raba shi da yawa, da yawa fiye da a cikin wasu nau'in. Male adult afaliny yana testes na 29 da 9 santimita, game da 600 grams na nauyi, da seminiferous tubules 200 microns a diamita.

A maturation na daban-daban sassan na testes na namiji dabbar dolfin faruwa a daban-daban sau.

Mene ne size na azzakari cikin wani dabbar dolfin?

Lokacin da wani dabbar dolfin ne a sauran, azzakari a cikin wani nau'i na madauki da yake boye a cikin wani musamman Musulunci. Yana yana goyan bayan da tsokoki da cewa ja da azzakari da kuma tura shi a cikin hali na zumudi.

A lokacin erection al'aurar Dolphins m saboda fibroelastichnogo tsarin memba, a annashuwa tsoka karyata, kuma busa saboda wani kara na jini. A memba tare da rabin-kura idon a cikin Musulunci prepuce. Ya na da kadan lanƙwasa a cikin nau'i na wani English harafin S, kuma m albuginea.

A m jihar girman da azzakari dabbar dolfin dan kadan canja. Diamita memba - game da takwas da rabi santimita, a tsawon daga 25 zuwa 33 santimita.