In a typical
mammalian body such as the
human body, the external body orifices are: • The
nostrils, for
breathing and the associated sense of
smell • The
mouth, for
eating,
drinking, breathing, and vocalizations such as
speech • The
ear canals, for the sense of
hearing • The
nasolacrimal ducts, to carry tears from the
lacrimal sac into the
nasal cavity • The
anus, for
defecation • The
urinary meatus, for
urination,
male ejaculation, and
female ejaculation • In
females, the
vagina, for
menstruation,
copulation and
birth • The
nipple orifices Other animals may have some other body orifices: •
cloaca, in
birds,
reptiles,
amphibians, and a few mammals, such as
monotremes. •
siphon in
mollusks,
arthropods, and some other animals ==Internal==