At the onset of a muscle contraction, the presence of calcium triggers the opening of the Na-K channels in the membrane. Potassium is a calcium inhibitor, so as the potassium flows out of the cell, it eventually reduces the presence of calcium. This causes the closure of the Na-K channel (negative feedback mechanism). In a hypokalemic state, the lack of sufficient K doesn't inhibit the calcium channel, and in turn doesn't properly terminate the muscle contraction at the cellular level.
Answer:
let one angle be x and other be x +40,
now, x+(x+40)=180 (supplementary angle is 180°) or, 2x=180 _40
or, x = 140/2
therefore; the value of x is 70° and as other angle is 40°more than this angle. so, another angle is 110°.
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Answer: Cyber bullying a member of the LGBTQA+ community or any community can cause pshycological harm to them because studies show bullying in any form can create significant damage to self esteem, self worth, social skills, and more
Explanation: (in answer)
4. What is a phagocytic cell? Give an example. Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells. (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells).
5. What are the signs of inflammation? Redness.
Heat.
Swelling.
Pain.
Loss of function.
6. Why does an inflamed area become red? These include the hormones bradykinin and histamine. They cause the small blood vessels in the tissue to become wider (dilate), allowing more blood to reach the injured tissue. For this reason, inflamed areas turn red and feel hot.
7. What is meant by the term “autoimmune”? An autoimmune disease is an illness that causes the immune system to produce antibodies that attack normal body tissues. Autoimmune is when your body attacks itself. It sees a part of your body or a process as a disease and tries to combat it.
