Quizlet what is the role of a sphincter? group of answer choices
a. it regulates the directional flow of gastrointestinal contents.
b. it prevents the movement of food into the trachea.
c. it is a longitudinal muscle that segment food.
d. it stimulates enzyme production.

a.It regulates the directional flow of gastrointestinal contents.

Explanation:

The function of a sphincter:

The sphincter are muscles which are responsible for controlling the passage of the food that is not fully digested direct from the stomach to the small intestine.

These are the muscles that will either contract or close or open your passage route .

The common sphincter are found in our stool passage hole which assists us with the excretion of waste materials after digestion has occured , there is also a sphincter that controls our ability to urinate.

There are also sphincter muscles found in the eyes which assist our eye pupil to shut or contract when hit by a bright light .

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.

where is the passage