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The utricle and saccule are the two otolith organs in the vertebrate inner ear. The word utricle comes from Latin uter 'leather bag'. The utricle and saccule are part of the balancing system (membranous labyrinth) in the vestibule of the bony labyrinth (small oval chamber). [1]
The vestibule of the ear and the otolith organs, called the utricle and saccule, are part of the vestibular system which controls our equilibrium and balance. Diseases affecting this area of the middle ear typically result in vertigo.
Displacements and linear accelerations of the head, such as those induced by tilting or translational movements (see Box A), are detected by the two otolith organs: the sacculus and the utricle. Both of these organs contain a sensory epithelium, the macula, which consists of hair cells and associated supporting cells.
Episodic utricular disorders might be accompanied by sensations of tilting or imbalance, but should not be accompanied by vertigo. Episodic saccule dysfunction, in theory, might manifest as a confusion of up and down, or the so-called "inversion illusion".
The utricle is one of two "otolithic organs" in the human ear, the utricle and saccule. On the diagram below, the utricle are located in the vestibule which is the central area within the inner ear.
The utricle is a small, oval-shaped sac situated in the vestibule of the bony labyrinth, adjacent to the semicircular canals and near the entrance to the cochlea. Like the saccule, the utricle is filled with endolymph, a fluid that plays a key role in sensory transduction.
The membranous contents of the vestibule are the saccule and utricle. The saccule is a small, fibrous pouch that communicates inferiorly with the cochlear duct via the ductus reuniens. The utricle is also a fibrous sac and communicates with the semi-circular ducts.
Your inner ear includes vestibular system organs (semicircular canals, utricle and saccule) involved in balance and your cochlea, which helps you hear.
Utricle: sac-like inner ear organ containing otoliths; senses forward, backward, and side-to-side motion of the head. Vertigo: perception of movement (either of the self or surrounding objects) that is not occurring or is occurring differently from how it is perceived.
The utricle of the membranous labyrinth (or simply utricle, Latin: utriculus) is a part of the balancing apparatus situated within the vestibule of the inner ear. The receptors within the utricle detect linear accelerations.