Cartilage damage is a relatively common type of injury. It often involves the knees, although joints such as the hips, ankles and elbows can also be affected. Cartilage is a tough, flexible tissue found throughout the body. It covers the surface of joints, acting as a shock absorber and allowing bones to slide over one another. It can become damaged as a result of a sudden injury, such as a sports injury, or gradual wear and tear (osteoarthritis).
While it is still too early to clearly make out boy or girl parts at 12 weeks gestation, apparently the gender can be determined based on the angle of the nub (the genital tubercle). To determine gender based on a 12-14 week ultrasound, a profile view of the genital region is needed.
9 out of 10 found this helpful. You have to be between 16 and 20 weeks to find out the sex of the baby. That is when the genitals transforms into what the baby is gonna be. At 20 weeks they can be pretty sure of what sex the baby is. The baby can still be trick the md though. posted 09/13/2008 by Nursenatashao.