Business cycle,U.S. Note that the average expansion cycle since 1945 averages 5 years. The average since 1854 is 4 years. The longest recorded was 1961 to 1969, 8 1/2 years.We are near the end one of the most prosperous cycles in U.S. history. The last recession ended in march 1991.As of the present, we are in the ninth year of expansion. The probability of recession in 2000 is extremely high, and a virtual certainty.ote that the average expansion cycle since 1945 averages 5 years. The average since 1854 is 4 years. The longest recorded was 1961 to 1969, 8 1/2 years.
The cardiovascular system also consists of the veins, arteries and capillaries that route blood... The heart is part of the cardiovascular system and works like a pump to move blood throughout the body. The cardiovascular system also consists of the veins, arteries and capillaries that route blood...
The heart is basically a pump. The heart is made up of specialized muscle tissue, called the myocardium. The heart's primary function is to pump blood throughout the body, so that the body's tissues can receive oxygen and nutrients and have waste substances taken away.Like any pump, the heart requires fuel in order to work. The myocardium requires oxygen and nutrients, just like any other tissue in the body.However, the blood that passes through the heart's chambers is only passing through on its trip through the body-this blood does not give oxygen and nutrients to the myocardium.he heart is basically a pump. The heart is made up of specialized muscle tissue, called the myocardium. The heart's primary function is to pump blood throughout the body, so that the body's tissues can receive oxygen and nutrients and have waste substances taken away.