The size of a population is determined by a balance between births, immigration, deaths and emigration.

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#Id: 5677

#Unit 7. System Physiology – Animal

When the stereocilia are pushed toward the kinocilium, the membrane potential is decreased to about –50 mV.

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#Id: 5678

#Unit 7. System Physiology – Animal

The K+ that enters hair cells via the mechanically-sensitive cation channels is recycled. In the cochlea, K+ eventually reaches the stria vascularis and is secreted back into the endolymph, completing the cycle

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#Id: 5679

#Unit 7. System Physiology – Animal

Cells in the stria vascularis have a high concentration of Na+-K+ ATPase

 

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#Id: 5680

#Unit 7. System Physiology – Animal

A unique electrogenic K + pump in the stria vascularis accounts for the fact that the scala media is electrically positive by 85 mV relative to the scala vestibuli

and scala tympani

 

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#Id: 5681

#Unit 7. System Physiology – Animal

When the bundle of processes is pushed in the opposite direction, the cell is hyperpolarized

 

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#Id: 5682

#Unit 7. System Physiology – Animal

Depolarization or hyperpolarization that is proportional to the degree to which the direction is toward or away from the kinocilium