Acetylcholine is the most abundant neurotransmitter (molecule that sends signals from 1 nerve cell to another) in the body. One major function of acetylcholine is found at neuromuscular junctions. Here is transmits signal from a neuron to a muscle cell and is therefore responsible for initiating muscle contraction.
Not quite sure if you're given any answer choices, but here are some diseases that have been linked to having a deficiency with this neurotransmitter:
Parkinson's
Huntington
Alzheimer's
Myasthenia gravis (characterized by muscle weakness and fatigue)
D is the answer....tornado damage can not be used to determine both the weather and climate of a region
In the depolarization step of action potential where the membrane resting potential is reversed by the rush of sodium ions into a neuron.
A membrane potential shift from -70mV to +30mV for a limited period of time is known as an action potential.
The moving action potential has three stages:
1) The depolarization step, where sodium ions rush into a neuron and reverse the membrane resting potential; and
2) repolarization, which is a mechanism that restores the resting voltage of the membrane and the ionic concentration in the cell, is caused by the closure of the voltage-gated sodium channels and the opening of the potassium channels.
3) Hyperpolarization, when excessive potassium ion efflux occurs as a result of some open potassium channels increasing potassium permeability and causing a drop in the membrane potential.
4) The action potential, which is a transient reversal of membrane potential that travels through the axon, comprises three phases that are described above.
To learn more about the action potential please click on the given link: brainly.com/question/4899353
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Answer:
The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.
Explanation:
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Answer:
I think its 4
Explanation:
I don't think DNA is a lipid I just think it helps deal with lipids but is not a part of one I think that acid is a lipid tho but thats why I chose 4 may be wrong tho
