What is an Utriculus?
What is an Utriculus?
n. pl. u•tric•u•li (-lī′) An anatomical sac or pouch, especially the one within the inner ear; utricle.
What does Saccule mean?
: a little sac specifically : the smaller chamber of the membranous labyrinth of the ear.
What is Utriculus in biology?
utriculus. (Science: anatomy) A little sac, or bag; a utricle; especially, a part of the membranous labyrinth of the ear. See the note under Ear.
What is Sacculus Utriculus?
The utricle and saccule are the two otolith organs in the vertebrate inner ear. They are part of the balancing system (membranous labyrinth) in the vestibule of the bony labyrinth (small oval chamber). They use small stones and a viscous fluid to stimulate hair cells to detect motion and orientation.
What contains utricle and saccule?
Within each structure, and filling only a fraction of the available space, is a corresponding portion of the membranous labyrinth: the vestibule contains the utricle and saccule, each semicircular canal its semicircular duct, and the cochlea its cochlear duct.
Where are otoliths found?
In vertebrates the utricular maculae in the inner ear contain an otolithic membrane and otoconia (particles of calcium carbonate) that bend hair cells in the direction of gravity. This response to gravitational pull helps animals maintain their sense of balance.
What is a woman’s vestibule?
The vulva vestibule contains the opening to the urethra and the vaginal opening. The borders of the vulva vestibule are formed from the edge of the labia minora. There is a demarcation between the vulva vestibule and the labia minora called Hart’s lines.
What is a Vestibulum in Latin?
Etymology. Unadapted borrowing from Latin vestibulum (“a forecourt, entrance court; an entrance”).
Where is the cochlear?
Cochlea: overview. The cochlea represents the ‘hearing’ part of the inner ear and is situated in the temporal bone. It derives its name from the Greek ‘kokhliās’ (meaning ‘snail’) as it forms a spiral structure during development, which makes it resemble a snail shell.
What does the word utriculus mean in Latin?
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Is the genus Biovularia part of Utricularia?
The genus Biovularia contained the species Biovularia olivacea (also known as B. brasiliensis or B. minima) and Biovularia cymbantha. The genus has been subsumed into Utricularia.
Why are the flowers of Utricularia carnivorous?
Utricularia are cultivated for their flowers, which are often compared with those of snapdragons and orchids, especially amongst carnivorous plant enthusiasts. All Utricularia are carnivorous and capture small organisms by means of bladder-like traps.
What is an Utriculus? n. pl. u•tric•u•li (-lī′) An anatomical sac or pouch, especially the one within the inner ear; utricle. What does Saccule mean? : a little sac specifically : the smaller chamber of the membranous labyrinth of the ear. What is Utriculus in biology? utriculus. (Science: anatomy) A little sac, or bag; a…