Answer:
Calcium
Explanation:
Calcium is an important element present in the organisms body. The calcium can acts as an important messenger molecule and helps in the process of muscle contraction.
The concentration of calcium ions in the myoplasm leads to the development of force necessary for the movement of actin and myosin molecule. The calcium ions cling the cross bridge formation during muscle contraction.
Thus, the correct answer is option (b).
Since you have unpack a single, 60 gm tube of Fluocinonide cream 0.5%, it is better to place this item onto the shelf because it has been open and it a need a place that is dust free and not air tight.
<h3>What is the drug keeping about?</h3>
There is found to be a lot of brands of Fluocinonide medication and there seems to be also may different storage requirements.
So it is better to follow the requirement that is said to be written in the package labeling or ask a pharmacist for the storage requirements.
Hence, Since you have unpack a single, 60 gm tube of Fluocinonide cream 0.5%, it is better to place this item onto the shelf because it has been open and it a need a place that is dust free and not air tight.
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QUESTION 4
Which of the following is a characteristic of low-context culture?
O Efficiency and speed are valued
O Teamwork is preferred
O Excellence and completeness are valued
O Nonverbal elements are important
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.
