Which of the followings is not a secondary cartilaginous joint?
A. Sacrococcygeal symphysis
B. Ischiopubic synchondrosis
C. Intervertebral discs
D. Manubriosternal joint
E. Symphysis pubis
The Correct Answer is option B. Ischiopubic synchondrosis.
Ischiopubic synchondrosis is a primary cartilaginous joint. It is a joint in which bones are attached by hyaline cartilage. The symphysis pubic, sacrococcygeal symphysis, and manubriosternal joint are secondary cartilaginous joints. It is fibrocartilage in nature.