Triggering of the muscle action potential occurs after Ach binds to chemically gated channels in the motor end plate membrane. Acetylcholine (Ach) is a neurotransmitter produced by nerve cells.
An action potential is an electrical signal that travels along the cell membrane as a wave.
This action potential (muscle action potential) drives the contraction of muscle fibers.
When the action potential reaches the neuromuscular junction (i.e., the motor end-plate), acetylcholine (Ach) is released into the synaptic cleft.
Subsequently, Ach can bind and open specific channels localized on the surface of the muscle cells, thereby depolarizing them and triggering muscle contraction.
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The brain can be described to be divided into two hemispheres, the left and right hemispheres.
Corpus callosum is a bundle of flat neural fibers under the cortex in the eutherian brain lying at longitudinal fissure. The function of corpus callosum is inter hemispheric communication and connects the left and right cerebral hemisphere.
The brain majorly consists of for lobes which are frontal lobe, temporal lobe, parietal lobe and occipital lobe.
The carbon model is the flow and the movement of the carbon and its compound in the atmosphere. Climate change is the limitation of the carbon model.
<h3>What is climate change?</h3>
A climate change is a variation in the weather and the climate pattern due to a change in temperature and other atmospheric factors. It will lead to a transformation in the flow of carbon in the environment.
Increased carbon in surroundings increases temperature and results in a change in seasons and humidity levels, leading to changes in the rainfall.
Therefore, climate change is the limitation of the carbon model.
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The correct answer is vestigial.
A vestigial composition is an anatomical characteristic, which no longer appears to exhibit an objective in the present form of an organism of the given species. Usually, these vestigial compositions were organs, which had done some essential activity in the organism at one time in the past.
The examples of human vestigiality are plentiful, involving the anatomical compositions like wisdom teeth, human tailbone, and inside corner of the eye.
The ultimate responsibility of CNS is to to convert sensory inputs into electrical signals called nerve impulse to be transmitted to the brain.
<h3>What is central nervous system?</h3>
The brain and spinal cord make up the central nervous system (CNS). It is one of two parts of the nervous system. The other component is the peripheral nervous system, which is made up of nerves that connect the brain and spinal cord to the rest of the body. The central nervous system is the body's processing center.
The CNS's three broad functions are to receive sensory information, process information, and send out motor signals. It combines information from the entire body and coordinates activity throughout the entire organism.
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