Toads lack an outer ear, or a tympanum to transmit vibrations to the middle ear. Instead, they use the fenestra ovalis to transmit vibrations of the stapes to the endolympatic system, where the cells detect the vibrations through the lymph.
Oenopota ovalis was created in 1877.
Alopecosa ovalis was created in 2000.
Arispe ovalis was created in 1891.
the oval window- an oval opening between the middle ear and the vestibule having the base of the stapes or columella attached to its membrane -- called also fenestra ovalis, fenestra vestibuli the round window: a round opening between the middle ear and the cochlea that is closed over by a membrane -- called also fenestra cochleae, fenestra rotunda
Fenestra is a Latin word that means 'window' or 'wall opening'. In biology it is a small opening in or between bones
fenestra.
fenestra
fenestra
Ovalis glucosi
Fossa ovalis and ligamentum. Fossa ovalis -> foramen lovale Ligamentum-> Ductus arteriosus
The fossa ovalis is a remnant of the fetal structure known as the foramen ovale. This structure is a small opening that allows blood to bypass the fetal lungs and flow from the right atrium to the left atrium, helping to maintain sufficient oxygen levels before birth.
In the fetal hear the fossa ovalis was known as the foramen ovale, which allows blood to pass from the right to the left atrium, thus bypassing the fetal lungs.