Joints of Sternum

Question 1

What structures articulate at the costovertebral joints?

Answer 1

Head of rib and (demi) facets of vertebrae

Question 2

What structures articulate at the costotransverse joints?

Answer 2

Articulating surface of tubercle of rib and facet on transverse process of thoracic vertebrae

Question 3

What structures articulate at the interchondral joints?

Answer 3

Costal costal cartilages between ribs 6&7, 7&8, 8&9, and 9&10

Question 4

What structures articulate at the sternocostal joints?

Answer 4

Sternal-end of ribs and costal facets of sternum

Question 5

What type of joint are the costovertebral, costotransverse, costochondral, interchondral, sternocostal, manubriosternal, and xiphisternal joints?

Answer 5

Gliding/Place (Synovial)
Gliding/Place (Synovial)
Synchondrosis
Gliding/Plane (Synovial)
Synchondrosis (Cartilagenous) for 1st rib, and gliding/plane (synovial) for ribs 2-7
Symphysis (Fibrous)
Synchondrosis (Cartilagenous)

Question 6

What ligaments hold the costervertebral joints?

Answer 6

Radiate ligaments - covering

Intra-articular ligaments of ribs 1 and 10-12 - crests of head of ribs to intervertebral discs

Question 7

What ligaments hold the costotransverse joints?

Answer 7

Costotransverse ligament - same-leveled anterior transverse process to posterior neck of rib
Superior costotransverse ligament - neck of rib to transverse process of vertebra above
Lateral costotransverse ligament - non-articulating surface of tubercle of ribs to tip of same-leveled transverse process

Question 8

What ligaments hold the interchondral joints?

Answer 8

Interchondral ligaments - reinforce anterior and posterior

Question 9

What ligaments hold the sternocostal joints?

Answer 9

Anterior + posterior radiate sternocostal ligaments

Intra-articular ligaments