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2007-02-14 07:40:58 · 4 answers · asked by pre med student 2 in Science & Mathematics Biology

4 answers

I believe this is what you are looking for.

Each vestibular hair cell receptor has not only an efferent neuron that detects its dopolarization, but also has a afferent axon that comes from the vestibular nucleus of the brainstem. This afferent neuron ensures that there is a constant rate of firing when in repose. If the receptor depolarizes in response to movement in one direction, then the firing rate of the efferent neuron increases, if it hyperpolarizes due to movement in the opposite direction, then firing decreases. This allows one receptor to detect two directions, plus a resting state. The neurons that innervate the vestibular receptors are in the superior and inferior vestibular ganglia of Scarpa, and from there project form the vestibular section of the vestibulocochlear cranial nerve. The balance signals relay bilaterally in the vestibular nuclei of the brain stem. The lateral vestibular nucleus projects into the nodule and uvula of the cerebellum, and is in charge of the control of posture. The medial and superior vestibular nuclei project balance information to the oculomotor and trochlear nuclei, and are involved in the oculomotor reflexes to vestibular input.

2007-02-14 08:10:32 · answer #1 · answered by Anonymous · 0 0

Check your biology 101 handbook first of all. The inner ear has the most responsibility for that! The rest is left up primarily to muscle control.

2007-02-14 15:52:33 · answer #2 · answered by mangamaniaciam 5 · 0 0

Your inner ear is where your sense of balance comes from. Part of what's called the vestibular system.

2007-02-14 15:51:48 · answer #3 · answered by littlekitty1985 4 · 0 0

Your inner ear....or your Equilibrium is responsible for balance.

2007-02-14 15:49:09 · answer #4 · answered by Tina 3 · 0 0

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