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:reduce the binding of acetylcholine to its receptors on the postsynpatic membrane
Answer:
The menstrual cycle provides important body chemicals, called hormones, to keep you healthy. It also prepares your body for pregnancy each month.
Symptoms of undifferentiated connective tissue disease:
- Low fever
- Hair loss
- Rashes
- Sores or swelling inside of your mouth
- Dry mouth
If you experience any of these symptoms, go to the hospital as soon as possible.
Exercise should include all four types: endurance, strength, balance, and flexibility, according to research. Each one offers various advantages. The ability to perform one sort can also help you perform the others better, and variation lowers boredom and injury risk.
our breathing and heart rate rise when we engage in endurance exercises, also known as aerobic exercises. we may maintain your health, increase our fitness, and carry out the daily duties we need to undertake with the support of these exercises. The health of our heart, lungs, and circulatory system are all improved by endurance training. Stretching can improve our flexibility.
Moving more freely will make it easier for us to reach down to tie our shoes or look over our shoulder when we back our car out of the driveway. Balance exercises help prevent falls, a common problem in older adults that can have serious consequences. Many lower-body strength exercises also will improve our balance. Strong muscles help us stay independent and make everyday activities feel easier.
Learn more about endurance here-
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