  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.
Anismus (or dyssynergic defecation) refers to the failure of the normal relaxation of pelvic floor muscles during attempted defecation. Anismus can occur in both children and adults, and in both men and women (although it is more common in women). It can be caused by physical defects or it can occur for other reasons or unknown reasons.