  Sexual reproduction in fungi usually involves two different mating types. Because gametes of both mating types are about the same size, they are not called male and fema â¦ le.Rather, one mating type is called + (plus) and the other â (minus).ecause gametes of both mating types are about the same size, they are not called male and fema â¦ le. Rather, one mating type is called + (plus) and the other â (minus).
Defecation is normally assisted by taking a deep breath and trying to expel this air against a closed glottis (Valsalva maneuver). This contraction of expiratory chest muscles, diaphragm, abdominal wall muscles, and pelvic diaphragm exerts pressure on the digestive tract.
The ileocecal sphincter leads to the large intestine. Patients suffering from a malfunction of the lower esophageal sphincter may require a feeding tube. The digestive system contains a total of six sphincters. The digestive system starts at the mouth and ends at the anus, where waste is discharged from the body. The involuntary and voluntary sphincters are responsible for defecating and expelling feces. Heartburn may occur as a result of stomach acids seeping into the esophageal tube.