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Myasthenia gravis is an autoimmune disease affecting the neuromuscular junction. In myasthenia gravis, weakness occurs when the nerve impulse to initiate or sustain movement does not adequately reach the muscle cells. This is due to an autoimmune response in which immune cells target and attack the body's own cells. Antibodies are produced that attach to "affected areas", preventing muscle cells from receiving chemical messages (neurotransmitters) from the nerve cell. Using your knowledge of muscle contraction and how the nerve stimulation reaches the muscle cell, explain this disorder and how it interferes with contraction. What specific part of the muscle might the "affected area" be? Explain your choice. Would the administration of ACH or acetylcholinesterase possibly help the symptoms of this disease? Explain which one you think would help and why.
Roger Crocket, a sixty-eight year-old man with a 40-pack-year smoking history and recent complaints of angina upon exercising, collapsed while mowing his lawn.
The problem refers to the MN and ABO loci mentioned in class. It also refers to Rh locus, which is responsible for the positive/negative part of the blood type.
Many processes are involved in creating the Resting membrane potential.” Describe the ion and concentration FORCES or PROCESSES that are involved in determining the resting membrane potential.
BIO328- Biology for engineers, Assignment I: - Write important properties of water and phospholipids due to which life exists on the earth. If double stranded DNA has 14% G (guanine), what percent A (adenine), T (thyamine) and C (cytosine) would yo..
Social media strategy implementation and evaluation
Create a pure-breeding double-mutant apricot, blunt line and cross it with wild-type wasps. The F 1 is wild-type in appearance.
How could production of a packetlike spermatophore contribute to the evolutionary success of leeches in their environment?
A woman, age 36, had suffered from anorexia nervosa for 10 years and was admitted to the hospital for treatment. Her weight was about 60 percent of the ideal for her height
Explain the differences between eukaryotic and prokaroytic cells. Include in your discussion three phenotypic systems used to classify microbes.
In a cell about to undergo meiosis there are 2-pairs of homologous chromosomes. Genes D and d occur on different members of one pair of chromosomes.
Describe why 0.9 percent NaCl is an isotoinc solution. In another word, please explian the calculation that shows its osmolality is 300mOsm.
Since saprozoic is done through diffusion of soluble nutrients, I am not really sure which groups would do this. I know fungi is one of them, maybe the only one.
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