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.
The earliest an ultrasound can possibly determine the gender of a  fetus is 12 weeks. Most doctors won't attempt to determine the  gender until 16-20 weeks. Unlike amniocent â¦ esis, ultrasound  genderizing isn't an exact science.Depending on the way the baby  lays, it can be difficult to see the genitals.ost doctors won't attempt to determine the  gender until 16-20 weeks. Unlike amniocent â¦ esis, ultrasound  genderizing isn't an exact science. Depending on the way the baby  lays, it can be difficult to see the genitals.