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Sqadia.com covers whole MBBS curriculum of Physiology. Among the series of Abdul Wasay’s lectures on Medical Physiology, this lecture specifically covers the sense of hearing.
The Ossicular System
Section one is about ´´The Ossicular System´´. Educator started this section by the explanation of conduction of sound. Next is the impedance matching. After that attenuation of sound is discussed.
Section two is about ‘’Cochlea’’. At first its functional anatomy is discussed. This is followed by basilar membrane and resonance. At last transmission of sound is pursued.
The Organ of Corti
Section three is about ‘’The Organ of Corti’’. Earlier in this section its function is described. In the next slide excitation of the hair cells is reported. Then transmission of inner hair cells is explained.
Determination of Loudness
Section four is about ‘’Determination of Loudness’’. Prime focus is the power law. This is followed by decibel unit. Moving onward frequency range is discussed in this section.
Central Auditory Mechanisms
Section five is about ‘’Central Auditory Mechanisms’’. Initially auditory nervous pathways are explained. After that function of the cerebral cortex is reported. Finally, educator tells about the determination of the direction.