â¢ When the axon hillock is depolarized to threshold, an action potential is generated. Voltage-gated. channels open, thereby increasing permeability of the neuron first to sodium and then to. potassium. â¢ As sodium moves rapidly into the neuron, it produces the rising phase of the action potential. â¢ As the inward movement of sodium slows and the outward movement of potassium increases, the. membrane repolarizes.
Why is 25 pound called a pony in cockney slang. Pony, in British (especially London) slang, is the term for a sum of Â£25.Possibly derived from Indian Ruppee featuring animals on their currency.hy is 25 pound called a pony in cockney slang. Pony, in British (especially London) slang, is the term for a sum of Â£25.
The first things you gotta learn are that five pounds is a fiver, and ten pounds is a tenner. Then you gotta know the key money values: Â£20 is a Score, Â£25 is a Pony, Â£100 is a Ton, Â£500 is a Monkey, and Â£1000 is a Grand. Here's our list of terms from the dictionary that are money-related.