Ijwabu liyisigaxa esiphindwe kabili sezicubu zemisipha ebushelelezi, imithambo yegazi, ama-neuron, isikhumba, nolwelwesi lwamafinyila okuyingxenye yomthondo ehlanganisa futhi ivikele i- glans penis nenyama yomchamo .Lujwabu ephathekayo, sasivumela stretchable, futhi uba yemvelo igrisi .Ijwabu liphinde lichazwe njenge- prepuce, igama elibanzi ngokwezobuchwepheshe futhi elihlanganisa ne- clitoral hood kwabesifazane, lapho ijwabu lithanda kakhulu embhedeni. Ijwabu labantu abadala livame ukuhlehliswa ngaphezulu kwe-glans. Ukumbozwa kwama-glans endaweni e-flaccid nokuma kuyehluka kuye ngobude bejwabu.Ijwabu linanyathiselwa ku-glans lapho lizalwa futhi imvamisa alibuyiseki kusebuntwaneni.Ukwehluleka ukuhoxisa ijwabu ebuntwaneni akufanele kuthathwe njengenkinga ngaphandle kokuthi kube nezinye izimpawu.I innervated kakhulu zone mucocutaneous we umthondo kwenzeka eduze ichopho ijwabu. Ijwabu lingaba ngaphansi kwezimo eziningi zokugula.Izimo eziningi azivamile futhi zelashwa kalula. Kwezinye izimo, ikakhulukazi ngezimo ezingalapheki, ukwelashwa kungafaka ukusoka, inqubo lapho ijwabu lisuswa khona kancane noma ngokuphelele. Ingaphandle lejwabu liwukuqhubeka kwesikhumba emgodini wendoda, kepha ijwabu langaphakathi ulwelwesi lwamafinyila njengaphakathi kwejwabu leso noma umlomo. Indawo enocucutaneous yenzeka lapho kuhlangana khona ijwabu langaphandle nelangaphakathi.Njengejwabu leso, ijwabu likhululekile ukuhamba ngemuva kokuthi lihlukane ne- glans, okuvame ukwenzeka ngaphambi noma ngesikhathi sokuthomba.