What is oogenesis? Oogenesis is a type of gametogenesis. It is the process of producing female gametes, once sex determination of the embryo has occurred. The presence of the SRY gene on the Y chromosome leads to male gonad formation and spermatogenesis, while female gonad development is the âdefault stateâ.
One type of twist or kink is called a small bowel obstruction. This usually happens after a patient has had an abdominal operation like appendectomy, hysterectomy, or colon removal which leads to scar tissue or adhesions developing in the abdomen. The intestines can be come twisted, kinked, or obstructed around this scar tissue. This condition, called a small bowel obstruction, may require surgery for treatment in 20% of patients. Small bowel obstruction can also occur as the result of a hernia. Another type of intestinal twist is called a volvulus. This usually occurs in the colon, where a segment of the colon rotates 180 degrees like a roller coaster loop. This causes a blockage of the colon and may pinch off the blood supply to the colon.
To Your Good Health. Surgery to remove scar tissue can create more. Dear Dr. Roach â¢ I have been hospitalized twice in the past year for a partial blockage in my bowel, where there is scar tissue. I did have a noncancerous polyp removed as well as part of my colon in 2008, and in 1959, I had a tumor and ovary removed. I am 73 years young. The last time a doctor suggested surgery to remove the scar tissue, my primary care doctor said it wasnât a good idea because it would only make more scar tissue.