ampulla

Examples of ampulla in the following topics:

• Balance and Determining Equilibrium

  • The base of each semicircular canal, where it meets with the vestibule, connects to an enlarged region known as the ampulla.
  • The ampulla contains the hair cells that respond to rotational movement, such as turning your head from side to side when saying "no."
  • The stereocilia of these hair cells extend into the cupula, a membrane that attaches to the top of the ampulla.
  • The semicircular canals contain several ampullae, with some oriented horizontally and others oriented vertically.
  • By comparing the relative movements of both the horizontal and vertical ampullae, the vestibular system can detect the direction of most head movements within three-dimensional (3-D) space.

• Phylum Echinodermata

  • The ring canal connects the radial canals (there are five in a pentaradial animal), and the radial canals move water into the ampullae, which have tube feet through which the water moves.
  • Ampullae

• Gnathostomes: Jawed Fishes

  • Organs called ampullae of Lorenzini enable sharks to detect the electromagnetic fields that are produced by all living things, including their prey.