Tonotopic and Auditory Cortex

Tonotopic¬† The hair cells near the apex of the basilar membrane respond to more low frequency, while hair cells nearer to the base of the basilar membrane are are respond to higher frequencies. How do we sense how loud noise is? The answer seems simple, the noise level, right? But how does your brain understand … Continue reading Tonotopic and Auditory Cortex

The trip through the magical land of the Auditory Pathway

After the neurotransmitters are released from the hair cells to the postsynaptic membranes of the axons from the spiral ganglion (last post), they begin there travels to the brain. The basic steps to this is: Information begins this journey from the spiral ganglion ¬†and enters the brain stem through the vestibular auditory system also called … Continue reading The trip through the magical land of the Auditory Pathway

The anatomy and function of the Ear plus hair cells

The Process of hearing - the first half Sound waves enter the ear canal and strike the ear drum (tympanic membrane), which transforms sound waves into vibrations Those vibrations end up causing the 3 bones in the middle ear to vibrate (malleus, incus, staples) (m.i.s u middle ear) The staples that are attached to the … Continue reading The anatomy and function of the Ear plus hair cells