The neuromuscular junction is the site of the signal exchange. The steps of this process in vertebrates occur as follows:(`) The action potential reaches the axon terminal. (2) Voltage-dependent calcium gates open, allowing calcium to enter the axon terminal.he neuromuscular junction is the site of the signal exchange. The steps of this process in vertebrates occur as follows:(`) The action potential reaches the axon terminal. (2) Voltage-dependent calcium gates open, allowing calcium to enter the axon terminal.
Find out more about the common causes, symptoms, diagnosis and treatment options for pain on outside of foot in the ankle sprain section. 3) Cuboid Syndrome Cuboid Syndrome is a less common cause of lateral foot pain (i.e. outer side of foot pain) but it frequently goes undiagnosed which can lead to symptoms being present for long periods. It is caused by one of the small foot bones, the cuboid, being partially dislocated out of position following an injury like an ankle sprain or from repetitive strain on the foot.
Plantar fasciitis occurs when the flat ligament on the bottom of the foot that runs between the heel and the foot pad is stretched in an awkward position. If the plantar fascia is strained, small tears may develop in the ligament. As a result, the ligament becomes inflamed, making it painful to put pressure on the affected foot. Generally, plantar fasciitis causes heel pain that can either be minor or can actually affect your ability to walk.