Answer :
cupula (plural cupulas or cupulae) (plural cupulas or cupulae) a dome- or cup-shaped item. (anatomy) A movable component that senses head rotation in the semicircular canals of the ampullae of the ear.
All living things keep an eye on their surroundings, and gravity and how the body is positioned in relation to it are significant elements of that environment. Additionally, creatures that move through locomotion must be able to change their orientation in response to their own movements as well as external pressures. These crucial functions are carried out by the vestibular system. It activates a number of reflex pathways that are in charge of compensatory movements and postural adjustments. In order to provide perceptions of gravity and movement, it also activates neural pathways that lead to the cupula . The Chapter's first section begins with a description of the peripheral sensory apparatus and explains how specialized receptors transduce information.
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