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.
A scar results from the biological process of wound repair in the skin-a natural part of the body's healing process. Any burn, injury, skin condition, or other trauma, such as surgery, can cause a scar.They form when the dermis (deep, thick layer of skin) is damaged. The body forms new collagen fibres (a naturally occurring protein in the body) to mend the damage, resulting in a scar.The new scar tissue will have a different texture and quality than the surrounding tissue; while most scars are flat and pale, some can be raised, sunken, or pitted in appearance.he body forms new collagen fibres (a naturally occurring protein in the body) to mend the damage, resulting in a scar. The new scar tissue will have a different texture and quality than the surrounding tissue; while most scars are flat and pale, some can be raised, sunken, or pitted in appearance.