Answer:
Action potential in a motor neuron triggers the release of acetylcholine (ACh) neurotransmitter.
Explanation:
Acetylcholine: It is a neurotransmitter released by motor neurons which bind to the receptors end plates of the motor. When an action potential travel down the motor neuron's axon, neurotransmitter release occurs resulting in an influx of calcium and altered permeability of the synaptic terminal membrane.
The Ca2+ ions allow synaptic vesicles to move and bind with the presynaptic membrane which is present on the neuron and released neurotransmitter from the vesicles into the synaptic cleft. Once it's released ACh diffusion occurs across the synaptic cleft to the motor end plate, and binds with ACh receptor. As the neurotransmitter ACh binds, these ions channel open and sodium ions cross the membrane into the muscle cells.
In this phase reduction of voltage inside and outside the cell occurs, which is known as depolarization. When ACh binds to the motor end plate this depolarization is known as end plate potential. Then depolarization spread with the sarcolemma and creating an action potential. This action potential moves the entire cell and creating a wave of depolarization.
Evidence for evolution, in other words evidence of common descent, include fossils, which have shown a (fairly) steady change in morphology over time for some species. An example would be horse hooves: we have fossils that show when they were still three toed, then two toed, then one toe in our present day horses. Another piece of evidence is vestigial organs. An example of vestigial organs is wings in some flightless birds, such as the kiwi. Their ancestors used it in order to fly across the marine barrier into New Zealand, but natural selection and random genetic drift made them quickly lose the ability to fly. Nonetheless, they still have their wings, however small. It can be assumed that eventually, their wings would be reduced to small stubs fused to other nearby bones, as has been observed in their cousins.
Answer:Luteinizing Hormone
Explanation:Luteinizing Hormone (LH) is a gonadotropin synthesized and secreted by the anterior pituitary gland in response to GnRH. Like FSH, LH is involved in reproductive processes in both males and females. When follicle maturation is complete, an LH surge triggers ovulation.
We are asked to fill up the blank space provided by the question above. The question above state that "<span>At higher doses, __________ causes twitching, irritability, panic, heart attack, and death." The statement talks about a term used when a person suffer such characteristics. The nearest term to described conditions once used by a person is called Cocaine.</span>
Maintaining a healthy lifestyle through diet and exercise is important because the world is rapidly advancing and this rapidness has brought many health concerns. Today's lifestyle is extremely stressful for any age group and without proper diet and exercise, one cannot cope up with his/her daily routine.
<h3>Benefits of Diet and Exercise:</h3>
- It helps in dietary nourishment and proper intake of nutrients.
- Exercising keeps a check on calorie intake.
- Proper supplements with exercise helps in muscle development and removal of bad body fat.
- A person with a good diet and regular exercise can attain good physical and mental well-being.
To learn more about maintaining a healthy lifestyle through diet and exercise, refer:
brainly.com/question/25814640
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