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Explain the Ureters
Ureters, are the two tubes which convey the urine from the kidneys to the urinary bladder. Each tube measures approximately 10 to 12 inches in length. They start from the pelvis of the kidney and pass downwards. What is the structure of the ureters? The outer coat of the ureter consists of fibrous tissue. The middle layer is a muscle layer consisting of smooth muscle (outer longitudinal and inner circular). The inner lining is a mucous membrane consisting of transitional epithelium.
What is the main function of the ureters? The ureters propel the urine from the kidney into the bladder by contraction of the muscle layer. On the other hand, as the urinary bladder contracts, the walls of the ureters are pressed together. This prevents the urine to be forced back to the ureter. So by the simple contractioil of the muscle, the urine is passed from the ureter to the urinary bladder.
Explain the Hormones from the Islets of Langerhans The cells which make up the Islets of Langerhans are found in clusters, distributed throughout the substance of the pancreas.
How to mount fossils If you occur to live in a locality where fossils are plentiful, it will be interesting to have the peoples make a fossil collection for the school museum.
Thiamin (vitamin B1) Thiamin was first isolated in 1926 from rice polishing by Jansen and Donath. Its empirical formula was established in 1931 by Windaus and co-w
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Determine about the Bicarbonates Bicarbonates are highly soluble, Ca(HCO3)2 goes into solution. Further, stronger acids, like nitric a nd sulphuric acid present in soils thro
? Select one of the sociological perspectives, the functionalist, conflict, or symbolic interactionist, and analyze the problems facing K-12 education in the United States.
Cis-isomer : Both hydrogen atoms located on the same side of the double bond.
Vitamins: You are, probably, familiar with the names of some of the vitamins. They can be obtained from plant and animal foods. Vitamins are required in small amounts and their
QUESTION 1 (a) Differentiate between the central nervous system and the peripheral nervous system (b) Elaborate on the functions of the hindbrain structures QUESTION 2
When does an atoll start to form? This starts to form when tiny marine animals - coral polyps - attach themselves to rocks on the seabed.
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