ˈɛndbˈʌlbz ɑːɹ fˈaʊnd ɪnðə kəndʒˈʌŋktɪvə ʌvðɪ ˈaɪ wˌɛɹ ðeɪ ɑːɹ sfˈɛɹɔɪdəl ɪn ʃˈeɪp ɪn hjˈuːmənz, bˌʌt sɪlˈɪndɹɪkəl ɪn mˈoʊst ˈʌðɚɹ ˈænɪməlz, ɪnðə mjˈuːkəs mˈɛmbɹeɪn ʌvðə lˈɪps ænd tˈʌŋ, ænd ɪnðɪ ˌɛpɪnˈʊɹɹiəm ʌv nˈɜːv tɹˈʌŋks.
End-bulbs are found in the conjunctiva of the eye (where they are spheroidal in shape in humans, but cylindrical in most other animals), in the mucous membrane of the lips and tongue, and in the epineurium of nerve trunks.