Answer:
The correct answer will be:
1. Acetylcholine binds to receptors on the motor end plate
2. Chemically-regulated ion channels open, causing depolarization
3 End plate potentials trigger action potential(s).
4. Transverse tubules convey potentials into the interior of the cell
5. Ca++ is released from the sarcoplasmic reticulum
6. Ca++ binds to troponin, pulling on tropomyosin
7. Binding sites on actin are uncovered, allowing myosin to bind and carry out power strokes
8. Force increases.
9. Ca++ is pumped (re-sequestered) into the sarcoplasmic reticulum
10. Force decreases.
Explanation:
The muscle contraction is a highly controlled mechanism which begins at the neuromuscular junction with the release of the acetylcholine neurotransmitter. This neurotransmitter causes the depolarization of the membrane by binding to the receptors of the motor end plate which generates an action potential. This action potential is transmitted via T-tubules from sarcolemma to the sarcoplasmic reticulum.
The sarcoplasmic reticulum releases calcium ions which binds to the troponin protein. This troponin removes the protein tropomyosin from the actin causing the rotation of the tropomyosin exposing the binding sites for myosin. The myosin binds to the actin using energy from the ATP which pulls the actin causing contraction. Another ATP binds the myosin head which weakens the bond between myosin and actin which releases the myosin which decreases the force between them decreases and the muscles relax.
Answer:
There are big tissue appearance differences between the endometrium and the myometrium. The endometrium is the layer of the intrauterine tissue that is exposed to the intrauterine cavity and is composed of the endometrial epithelium (epithelial cells and glandular cells) , whereas the myometrium is the middle layer composed by muscular cells.
Explanation:
The appearance of the endometrium is a monolayer of polarized epithelial cubic cells and glandular cells, that form the 'luminal' layer of the intrauterine tissue. The cells in the endometrium are prepared to provide nutrients and shelter for the embryo to come. That is why, the endometrium cells are susceptible to hormonal changes throughout the woman's cycle. This hormonal impact makes this tissue grow and be prepared to receive the embryo. If there is no embryo implanted in the endometrium, the hormonal changes also provoke this tissue to 'peel', what is known as menstruation.
On the other hand, the myometrium is composed by smooth muscle cells. These cells are capable of a great flexibility, needed to carry on the pregnancy. The myometrium fulfils a very important role during labour, in which the contraction of the muscle pushes the baby to through the cervix and finally out of the mother's womb. It also expels the placenta after labour. It's structure, flexibility and fast contraction are vital to minimize the blood loss after labour.
Answer:
Clarity, consistency, creativity, content, and connections.
Medicare is a US government health insurance that is part of the Social Security Administration and covers the:
- medications, etc of eligible people under the plan.
<h3>What is Medicare Advantage Plan?</h3>
This refers to the medical plans that are covered by Medicare-approved private companies that adhere to the rules set by Medicare and are sometimes known as “Part C” or “MA Plans,”.
The persons that are eligible for medicare in the United States are senior citizens.
These are people between the ages of 65 and older and need to sign up for Medicare 3 months before they turn 65 and may get it quicker if they have disabilities.
Hence, we can see that your question is incomplete so a general overview of medicare health plans and their eligibility was given so you would have a better understanding of the concept,
Read more about medicare here:
brainly.com/question/26982947
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Answer:
social psychology
Explanation:
they are dealing with social issues