The previous page is sending you to https://www.alamy.com/the-biology-of-the-amphibia-amphibians-336-the-biology-of-the-amphibia-sacculus-may-be-constricted-into-a-smaller-upper-and-a-larger-lower-vesicle-the-utriculus-gives-rise-to-the-semicircular-canals-which-are-arranged-in-the-three-planes-characteristic-of-all-gnathostomes-fig-122-the-anterior-and-posterior-canals-are-arranged-vertically-and-at-an-angle-of-90-degrees-to-one-another-and-45-degrees-to-the-median-plane-of-the-animals-body-the-third-is-at-right-angles-to-the-other-two-and-lies-horizontally-on-their-outer-side-the-sacculus-develops-a-small-evagination-the-lagena-which-image234606727.html.

 If you do not want to visit that page, you can return to the previous page.