NETA Personal Trainer Practice Exam

What type of joint is slightly movable and connected by fibrocartilaginous tissue?

1. Diathrodial

2. Synarthrodial

3. Amphiarthrodial

4. Ball-and-socket

The correct answer is: Amphiarthrodial

The type of joint that is slightly movable and connected by fibrocartilaginous tissue is classified as amphiarthrodial. These joints are characterized by a connection that allows for limited movement due to the presence of a fibrocartilaginous pad or disc that provides some cushioning while permitting slight flexibility. An example of an amphiarthrodial joint is the pubic symphysis, where the two pelvic bones are joined. Diathrodial joints, on the other hand, are freely movable joints found in areas like the knee or shoulder, providing a wide range of motion. Synarthrodial joints are immovable joints, offering no movement due to their dense connective tissue, like the sutures in the skull. Ball-and-socket joints, while allowing for a full range of movement in multiple planes, do not fit the description of being only slightly movable. Thus, amphiarthrodial accurately describes a joint with limited mobility, facilitated by fibrocartilaginous tissue.