Sweet Potato Storage. Unlike potatoes, fresh sweet potatoes generally do not store well, except under ideal conditions, and bruised ones rapidly deteriorate. In a dry, dark, cool (55 degrees F.) place, they can last up to three to four weeks. Plan on using within one week of purchase and do not refrigerate.
During an episode of supraventricular tachycardia (SVT), the heartbeat is not controlled by the SA node (the normal timer of the heart). Patient Access Register
3. The neurotransmitter in the neuromuscular junction... causes ligand gated calcium channels in the muscle fiber to increase their permeability to calcium, which depolarizes the postsynaptic membrane.. An action potential arriving at the presynaptic terminal causes... voltage-gated sodium ion channels to open, and sodium ions to diffuse into the cell. voltage-gated sodium ion channels to open, and sodium ions to diffuse out of the cell.