1) Kidneys – The left kidney is higher than the right kidney due to the position of the liver. Filters waste products of metabolism that collect in the blood. They remove waste from the blood to form urine. The kidneys maintain balance between retention and excretion of fluids ( play key role in fluid and electrolyte balance). The normal adult urine output is 1200 to 1500 ml/ day. An output less than 30 ml/hr indicates possible circulatory, blood volume or renal alterations. Erythropoietin functions within the bone marrow to stimulate RBC production and maturation. Patients with chronic kidney conditions cannot produce sufficient quantities of this hormone are prone to anemia. The kidneys affect calcium and phosphate regulation by producing a substance that converts vitamin D. Patients with chronic alteration in the kidney fuction do not make sufficient amounts of the active vitamin D. They are prone to develop renal bone disease resulting from impaired calcium absorption. Renal hormones affect blood pressure regulation, renal ischemia (decreased blood supply), and renin is released from juxtaglomerular cells. Renin functions as an enzyme to convert angiotensinogen (a substance synthesized by the liver) into angiotension1. Angiotensin 1 is converted to angiotensin 2 in the lungs. Angiotensin 2 causes vasoconstriction and stimulates aldosterone released from the adrenal cortex. Aldosterone causes retention of water, which increases blood volume. The kidneys also produce prostaglandin E2 and prostacyclin, which help maintain renal blood flow through vasodilation. These mechanisms increase arterial blood pressure and renal blood flow.…
7. In response to southern lack of compromise in the face of Andrew johnson’s mild reconstruction plan, congress did all of the following except…
1) Using the map on pages 14-15, list the sequence of human migration across the planet.…
5. 5. Philadelphia was the first capital of the new nation. What was the second?…
because they wanted to challenge the power of eastern elites for the stake of the…
Define (What it is and why is it important; who what where when why how):…
|a. |Siberian hunters crossed from Asia to North American during the last ice age. |…
Abigail Adams | Accomplishments of the First Congress | Albany Plan of Union | Alexander Hamilton | American Revolution (Major battles, turning points) | American System of Manufacturing | Articles of Confederation (successes, failures/weaknesses) | Bacon's Rebellion | Boston Massacre | Boundaries of America (1783, 1803) | Charles River Bridge v. Warren Bridge |…
The first set of men and women to set foot in the Americas came from northern Asia, 40,000 years ago during the Upper Paleolithic era. It is widely accepted that the first people to inhabit America crossed the Bering Strait when the sea level dropped and a land bridge (known as Beringia) between Alaska and Siberia was formed. Eventually these people made their way down the Isthmus of Panama into south America, they spread throughout the continent, with the earliest evidence for settlement in the region being 15,000 B.C. during the Lithic Period. This blog aims to analyze and explore the Andean region as one of the centers of independent civilization development.…
The earliest known inhabitants of what is now the United States are thought to have arrived in Alaska by crossing the Bering land bridge, at least 14,000 30,000 years ago.[10] Some of these groups migrated south and east, and over time spread throughout the Americas. These were the ancestors to modern Native Americans in the United States and Alaskan Native peoples, as well as all indigenous peoples of the Americas.…
• Based on archaeological and genetic evidence, scholars believe that the first people to settle the Americas came across a natural land bridge from Siberia into Alaska..…
clothing, or tools; Gatherers were learned how to tell which plants or fruits were edible…
A man called Leif Erikson discovered America before Columbus and he tried to stablish a settlement called Newfoundland, but he failed.…
i. (P.L. 99-603, 100 Stat. 3359) amended the Immigration and Nationality Act of 1952 to better control unauthorized immigration. Many members of Congress felt immigration was "out of control" because legal and illegal immigration had come to account for approximately thirty to fifty percent of U.S. population growth. Congress determined the best way to control immigration was to take away the incentive to enter the United States by preventing illegal immigrants from working or receiving government benefits. The Immigration Reform and Control Act provide sanctions for knowingly hiring an employee who is not legally authorized to work. It requires employers and states to check work authorization documents for every new employee or benefit applicant, including U.S. citizens, and to complete a related form. Many people were concerned that employer sanctions would lead to discrimination against legal immigrants or U.S. citizens who appeared foreign. To prevent such discrimination, the IRCA imposed penalties on employers who discriminated in this manner. The new employer sanctions, however, could cause great hardships for illegal immigrants who had been living and working in the United States for many years. The IRCA provided a program for certain illegal immigrants who had lived in the United States since at least January 1, 1982, to apply to become legal residents with the right to work. A different program allowed seasonal agricultural workers to apply for legal residency. Newly legal residents could eventually become citizens.…
The duties in a Taino village were assigned based on age and sex. In this regard, men and boys undertook tasks such as clearing the fields, hunting, fishing and defense of the village. They were also responsible for house construction and canoe making. Females played important roles as well. They were responsible for crop cultivation, spinning and weaving of…