PHYSIOLOGY
SKELETAL MUSCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Calcium
|
|
|
Sodium
|
|
|
Potassium
|
|
|
Carbon
|
Detailed explanation-1: -When the action potential reaches the terminal, it activates voltage-dependent calcium channels, allowing calcium ions to flow into theterminal. In the resting state, neurotransmitters are stored in vesicles at the pre-synaptic terminal.
Detailed explanation-2: -Over the course of the six experiments a total of 204/751 action potentials were prolonged. These data show that a crucial part of the calcium signal during action potential firing is generated by calcium release from intracellular stores.
Detailed explanation-3: -Typically, presynaptic terminals are enriched with the CaV2 class of calcium channels. This group is comprised of three different isoforms: CaV2.1 (P/Q-type), CaV2.2 (N-type), and CaV2.3 (R-type).