More specifically, transmission occurs when the agent leaves its reservoir or host through a portal of exit, is conveyed by some mode of transmission, and enters through an appropriate portal of entry to infect a susceptible host. This sequence is sometimes called the chain of infection.
Vitamin B12 is a water-soluble vitamin that cannot be absorbed by the intestinal mucosa unless it has been bound to intrinsic factor.
Intrinsic factor is a glycoprotein secreted by the stomach that is essential for the absorption of vitamin B12. Vitamin B12 is essential for the synthesis of DNA and for the maintenance of normal red blood cells.
Vitamin B12 is an important nutrient that helps keep the body's nerve and blood cells healthy. It also helps make DNA, the genetic material in all cells. Vitamin B12 is found in animal foods such as meat, poultry, fish, and dairy products.
The body needs vitamin B12 to make red blood cells, which carry oxygen throughout the body. Vitamin B12 is also needed for proper brain function and to prevent a type of anemia called megaloblastic anemia, which makes people tired and weak.
Learn more about anemia at : brainly.com/question/29355130
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Answer:
Hemiplegia caused by tumor in cerebellum of hind brain...
Explanation:
It is a kind of paralysis that is caused by the tumors in brain that may affect the cerebellum that control muscle movements. A partially affected cerebellum may contribute to half body paralysis. As the tumor grows larger and larger the more affected cerebellum may cause a final full body paralysis.
