2022年12月22日 · The costal margin forms the lower margin of the thoracic wall. It functions to protect higher abdominal organs such as the liver as the greater part of the liver lies just below the right costal margin. The costal margin also acts as one of …

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. [3] The costal angle is the angle between the left and right costal margins where they join the sternum. [2]

One of the most common aspects of pectus deformity is abnormality of the associated ribcage. This typically affects the lower ribs and the lower edge of the ribcage (the costal arch or margin).

Intense pain in the lower chest or upper abdomen above the costal margin, mostly at the height of the 8th, 9th and 10th ribs (false ribs). Signs and symptoms are usually unilateral, however there are also cases where patients reported bilateral pain.

CT reconstruction and rendering of the costal cartilage (in blue) showing the costal arch or margin. The costal arch varies in shape with narrow (left) and broad wide costal arches (right). Age, gender, obesity (particularly truncal abdominal obesity (pot belly) influence the shape.

2024年8月24日 · The costal angle is where the left and right costal margins converge at the sternum. It creates a protective zone for vital organs in the upper abdomen, such as the liver. This region protects these organs while facilitating respiratory movements.

The costal margin provides attachment sites for the diaphragm and abdominal muscles including the internal and external obliques, transversus abdominis, and rectus abdominis. The anatomy of the costal margin has more recently been shown to be quite variable.

2021年2月22日 · To palpate the liver, place your right hand parallel to the right costal margin, and use your left hand to support the inferior aspect of the rib cage. Provide a steady downward pressure to feel for the liver and gallbladder.

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).

The costal margin is the lower, curved border of the thoracic cage, formed by the cartilaginous ends of the lower ribs. The costal margin serves as an important anatomical landmark, helping to delineate the boundaries of the thoracic cavity and abdominal cavity.