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The molecular biology of hair cells has seen considerable progress in recent years, with the identification of the motor protein that underlies somatic electromotility in the outer hair cells. Prestin's function has been shown to be dependent on chloride channel signaling and that it is compromised by the common marine pesticide tributyltin.
The hair follicle is an organ found in mammalian skin. [1] It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions. The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells. [1]
Hair provides thermal regulation and camouflage for many animals; for others it provides signals to other animals such as warnings, mating, or other communicative displays; and for some animals hair provides defensive functions and, rarely, even offensive protection. Hair also has a sensory function, extending the sense of touch beyond the ...
The organ of Corti is located in the scala media of the cochlea of the inner ear between the vestibular duct and the tympanic duct and is composed of mechanosensory cells, known as hair cells. [2] Strategically positioned on the basilar membrane of the organ of Corti are three rows of outer hair cells (OHCs) and one row of inner hair cells ...
One kinocilium is the longest cilium located on the hair cell next to 40–70 stereocilia. During movement of the body, the hair cell is depolarized when the stereocilia move toward the kinocilium. The depolarization of the hair cell causes neurotransmitter to be released and an increase in firing frequency of cranial nerve VIII. When the ...
When a new root hair cell grows, it excretes a hormone that inhibits the growth of root hairs in nearby cells. This ensures equal and efficient distribution of the actual hairs on these cells. [citation needed] Repotting or transplanting a plant can result in root hair cells being pulled off, perhaps to a significant extent, which can cause ...
Until recently, the specific function of this gene was relatively unknown; it was only known to be required for normal function of cochlear hair cells. [7] However, new research suggests that TMC1 interacts with Tip link proteins protocadherin 15 and cadherin 23 indicating that TMC1, along with TMC2 , are necessary proteins for hair cell ...
The hair cell ribbon synapse experiences spontaneous activity in the absence of stimuli, under conditions of a constant hair cell membrane potential. [28] Voltage clamp at the postsynaptic bouton showed that the bouton experiences a wide range of excitatory postsynaptic current amplitudes. [4]