Special Tactics Advanced Skills Training, Hurlburt Field, Fla. Advanced skills training is a 12-to-15-month program for newly assigned combat controller operators. AST produces mission-ready operators for the Air Force and U.S. Special Operations Command. The AST schedule is broken down into four phases: water, ground, employment and full mission profile.
Saltatory Conduction. As in un-myelinated axons, the first action potential in myelinated axons takes place at the initial segment of an axon and is generated by a threshold stimulus from the dendrites and cell body. Subsequent action potentials occur at the nodes of Ranvier, where the Na+ voltage-gated channels are located. Therefore, when nerve impulses travel down a myelinated axon, they appear to jump from node to node - in a process called saltatory conduction. Each nodal action potential is triggered by a threshold stimulus created by passive current from the previous node.
Answers. Best Answer: Hi, Note that action potential (the wave of depolarisation from the postsynaptic membrane via saltatory conduction) is unidirectional and therefore must travel towards away from the cell body down the axon.The impulse will always travel away from the cell body towards the axon.The cell body is smaller and branched off an axon in a sensory neurone, so will travel from dendrites towards and then away from the cell body, but away from the cell body and always down the axon. Hooe this helps! Source(s):he impulse will always travel away from the cell body towards the axon. The cell body is smaller and branched off an axon in a sensory neurone, so will travel from dendrites towards and then away from the cell body, but away from the cell body and always down the axon. Hooe this helps! Source(s):