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 Pony of the Americas is an ideal riding horse for children due to its small stature, athleticism, and gentle personality. For young equestrian riders, who are too big for the smaller ponies yet not quite ready for a full sized horse, the Pony of the Americas is a perfect match. The growing popularity of the Pony of the Americas lends itself to being a breed for children to ride and show. It is a pony breed with a good appearance, speed, and stamina.