Costal margin - Wikipedia
The costal margin, also known as the costal arch, [1] is the lower edge of the chest (thorax) formed by the bottom edge of the rib cage. The costal margin is the medial margin formed by the cartilages of the seventh to tenth ribs. It attaches to the body and xiphoid process of the sternum. [2] The thoracic diaphragm attaches to the costal margin.
Costal margin: Anatomical structure and function - Kenhub
2022年12月22日 · The costal margin forms an arch that begins posteroinferiorly at the 10th costal cartilage and extends in an anterosuperior direction, terminating at the costal cartilage of rib 7, where it attaches to the body of sternum.
Costal cartilage - Wikipedia
The costal cartilages are bars of hyaline cartilage [1] that serve to prolong the ribs forward and contribute to the elasticity of the walls of the thorax. Costal cartilage is only found at the anterior ends of the ribs, providing medial extension.
The Ribs - Rib Cage - Articulations - Fracture - TeachMeAnatomy
2023年7月14日 · There are twelve pairs of ribs that form the protective cage of the thorax. They are curved and flat bones. Anteriorly, they continue as cartilage, known as costal cartilage.
Costal arch - e-Anatomy - IMAIOS
The costal margin (costal arch) is an arch formed by the medial margin of the cartilages of false ribs and one true rib (seventh rib to the tenth rib).
7.5 The Thoracic Cage – Anatomy & Physiology - Open …
Describe the components of the thoracic cage. The thoracic cage (rib cage) forms the thorax (chest) portion of the body. It consists of the 12 pairs of ribs with their costal cartilages and the sternum (Figure 7.5.1). The ribs are anchored posteriorly to the 12 thoracic vertebrae (T1–T12). The thoracic cage protects the heart and lungs.
Ribs: Anatomy, ligaments and clinical notes - Kenhub
2023年10月30日 · Ribs one to seven are considered true ribs and attach directly to the sternum via their own costal cartilage. Ribs eight to ten are the false ribs and are connected to the sternum indirectly via the cartilage of the rib above them.
Costal Margin - (Anatomy and Physiology I) - Fiveable
The costal margin, also known as the costal arch, is the lower, curved border of the thoracic cage formed by the cartilaginous ends of the lower ribs. It serves as an important anatomical landmark and plays a role in the structure and function of the thoracic cavity.
The Anatomy of the Ribs and the Sternum and Their Relationship …
The costal arch is formed by the fusion of the cartilages of the ribs 8, 9, and 10. This costal arch fuses in its cephalad course with the cartilage of rib 7 to complete the costal arch and to articulate with the sternum.
Costal margin - Wikiwand
The costal margin, also known as the costal arch, is the lower edge of the chest (thorax) formed by the bottom edge of the rib cage.