Which Is a Likely Cause for the Absence of Menstrual

question 20

Multiple Choice

Which is a likely cause for the absence of menstrual flow in a nonpregnant woman?

• A) The myometrium experiences excessive contractions in the menstrual phase.
• B) Estrogen concentration is significantly reduced.
• C) Prostaglandins are not released in the menstrual phase.
• D) The corpus luteum does not release the hormone relaxin.
• E) Uterine arteries are constricted in the menstrual phase.

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Definitions:

War of 1812

A conflict fought between the United States and the British Empire, along with its indigenous allies, from 1812 to 1815, often cited for its impact on U.S. nationalism and expansion.

Old Northwest

A historical term for the territorial region of the United States northwest of the Ohio River, encompassing states like Ohio, Indiana, Illinois, Michigan, Wisconsin, and parts of Minnesota.

Mississippi River

One of the largest river systems in North America, flowing southwards for over 2,300 miles from its source in Minnesota to the Gulf of Mexico, serving as a vital waterway for transportation, commerce, and ecology.

Treaty

A formal and legally binding agreement between two or more sovereign states or international organizations.