Respuesta :
Answer:
To discuss how sound receptors work, first, we must mention the order of events. Sound waves travel to the ear creating a vibration in the tympanic membrane. This energy transforms into mechanical energy to the malleus, incus, and stapes. The stapes are in close proximity to the oval window, and it amplifies the mechanical energy to the cochlea, a fluid-filled structure with a fluid called perilymph, by directly pushing on it. The cochlea has three layers called scala vestibuli (the ascending portion), scala media, and scala tympani (the descending portion). The organ of Corti is on the basilar membrane surface, and it contains hair cells which are the primary receptors in sound signal creation. There are two varieties of hair cells: inner and outer. Inner cells transmit information to the auditory nerve, and outer cells mechanically amplify low-level sound entering the cochlea.
Inner hair cells have an attachment with a tectorial membrane to which they bend against with movement of the cochlear duct membranes and fluids. When the stereocilia on the hair cells bend towards the longest cilia, potassium and voltage-gated calcium channels open, and ion influx increases resulting in depolarization. This depolarization allows for neurotransmitter release at the auditory nerve in the postsynapse, generating nerve impulses to be propagated from stereocilia of hair cells to the central nervous system via glutamate transmission. Discrimination of sound is via the location of the original nerve impulses from different areas of the cochlea.
Explanation:
The sensation is the physical process of stimuli detection and the reaction towards them. No, humans cannot detect physical energies for which the receptors are absent.
What is sensation?
The sensation is the process in which the sensory receptors and organs perceive the information or the stimuli from the external environment. The stimuli interact with the system receptors and convert the signal into nerve impulses.
Humans lack receptors that can detect the longer and shorter wavelength than the visible spectra and also low or high vibration energy of the sounds.
Humans can only detect the sounds and lights for which they have receptors and cannot see or hear light and sound below or above the specified ranges. They cannot detect energies for which the receptors are absent.
Therefore, option c. humans can detect the energies with a lack of receptors is incorrect.
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