The correct answer is: Binding of the neurotransmitter causes chemically gated sodium channels to open in the motor end plate (junctional folds of the sarcolemma) and sodium enters the cell.
Action potential travels through the membrane of the presynaptic cell causing the voltage-gated channels permeable to calcium ions to open. Ca2+ flow through the presynaptic membrane and increase the Ca concentration in the cell which will activate proteins attached to vesicles that contain a neurotransmitter (e.g. acetylcholine). Vesicles fuse with the membrane of the presynaptic cell, thereby release their contents into the synaptic cleft-space between the membranes of the pre- and postsynaptic cells. Neurotransmitter ACh binds to its receptors on the postsynaptic membrane and its binding causes depolarization of the target cell (muscle cell). Depolarization occurs because sodium enters the cell as a result of neurotransmitter receptor binding.
Answer:
The answer is D because it is the only example that takes place over a long period of time.
Explanation:
Answer
If the uterine wall thickens
Explanation:
A,B,D, these are all things that happen on a daily to women and most of them still have good horomone levels
Latitude denote the location of a place north or south of the equator. The reason why areas with low latitudes have warmer air than areas at high latitudes is the fact that different latitudes on Earth receive different amounts of sunlight. This defines the climate in the region. So, areas at high latitudes (farther away from the equator)<span> have sharper angle of the sun’s rays that reach it, meaning that the rays of the sun are spread across a broader area. This is the reason why there the ar is colder.</span>
