There are two varieties of hair cells. In humans the cerebellum plays an important role in motor controlIt may also be involved in some cognitive functions such as attention and. Exhaled Breath Analysis Breath Analysis Offers A Window On Lung Physiology And Disease And Is Rapidly Evolving As A Ne Respiratory System Analysis Physiology The cerebellum Latin for little brain is a major feature of the hindbrain of all vertebratesAlthough usually smaller than the cerebrum in some animals such as the mormyrid fishes it may be as large as or even larger. . 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. Quadriceps femoris muscle Musculus quadriceps femoris The quadriceps femoris muscle commonly known as the quad muscle is