Question

bio - 201l topic 3: skeleton
practice it
lo 3.5. what are the types of articulations within the thoracic cage?
sacro - coccygeal, coccygeal - vertebral, and vertebral - iliac joints.
sterno - costal, costochondral, and interchondral joints.
intervertebral, sacroiliac, and pubic symphysis joints.
metatarsophalangeal, talocrural, and tarsometatarsal joints.
sacro - iliac, acromioclavicular, and tibiofibular joints.

Explanation:

The thoracic cage is related to the rib - cage and sternum. Sterno - costal joints connect the sternum and ribs, costochondral joints connect ribs and costal cartilages, and interchondral joints are between costal cartilages. These are the articulations within the thoracic cage. The other options mention joints that are not part of the thoracic cage articulations.

Answer:

B. Sterno - costal, costochondral, and interchondral joints.