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 Welsh Pony (Section B) is slightly larger than the Welsh Mountain Pony. Welsh Ponies were used as a riding pony by shepherds and farmers in the hills of Wales.A section in the Stud book was opened for Welsh Ponies under 13.2 hh.he Welsh Pony (Section B) is slightly larger than the Welsh Mountain Pony. Welsh Ponies were used as a riding pony by shepherds and farmers in the hills of Wales.