Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which structure connects most ribs to the sternum in the human body?
A
Costal cartilages
B
Ligamentum flavum
C
Intervertebral discs
D
Articular cartilage
Verified step by step guidance
1
Understand the anatomy of the rib cage: The human rib cage consists of ribs, the sternum, and costal cartilages. The ribs are connected to the sternum via flexible structures that allow for movement during breathing.
Identify the role of costal cartilages: Costal cartilages are bars of hyaline cartilage that connect the anterior ends of most ribs to the sternum, forming the costochondral joints. This connection provides flexibility and support to the rib cage.
Clarify the function of the ligamentum flavum: The ligamentum flavum is a ligament located in the vertebral column, connecting adjacent vertebrae. It does not play a role in connecting ribs to the sternum.
Explain the intervertebral discs: Intervertebral discs are fibrocartilaginous structures located between vertebrae in the spine. They provide cushioning and support but are unrelated to the rib-sternum connection.
Discuss articular cartilage: Articular cartilage is a type of hyaline cartilage found at the ends of bones in synovial joints. It facilitates smooth movement in joints but does not connect ribs to the sternum.