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Ampullae of Lorenzini are physically associated with and evolved from the mechanosensory lateral line organs of early vertebrates.Passive electroreception using ampullae is an ancestral trait in the vertebrates, meaning that it was present in their last common ancestor. [7]
The cupula is the onion-shaped structure surrounded by endolymph in the ampulla. The ampullary cupula, or cupula, is a structure in the vestibular system, providing the sense of spatial orientation. The cupula is located within the ampullae of each of the three semicircular canals.
At one end of each of the semicircular ducts is a dilated sac called a membranous ampulla, which is more than twice the diameter of the ducts. Each ampulla contains an ampullary crest, the crista ampullaris which consists of a thick gelatinous cap called a cupula and many hair cells. The superior and posterior semicircular ducts are oriented ...
Necrotizing meningoencephalitis (NME) is a fatal inflammatory central nervous system (CNS) disorder in dogs, where an extensive cerebral necrosis is associated with a multifocal, non-suppurative meningoencephalitis of the neuro cortex.
An otolith (Ancient Greek: ὠτο-, ōto-ear + λῐ́θος, líthos, a stone), also called otoconium, statolith, or statoconium, is a calcium carbonate structure in the saccule or utricle of the inner ear, specifically in the vestibular system of vertebrates.
Interacting with dogs in such ways may strengthen people’s brain waves associated with rest and relaxation, as measured by brain tests, according to a small study published Wednesday in the ...
Beta brain waves, which are associated with attention and concentration, became stronger when participants played with Aro, brushed her or gave her a gentle massage — a sign that people's ...
The vestibular nerve is one of the two branches of the vestibulocochlear nerve (the cochlear nerve being the other). In humans the vestibular nerve transmits sensory information from vestibular hair cells located in the two otolith organs (the utricle and the saccule) and the three semicircular canals via the vestibular ganglion of Scarpa.