2023年10月30日 · The head of each rib is wedge shaped and has two articular facets, which are separated by a wedge of bone, known as the crest of the head. The larger of the two facets is for articulation with the superior costal facet of its corresponding vertebral body, while the smaller of the two articulates with the inferior costal facet on the body of the ...

2022年11月18日 · Head: It is the wedge-shaped (medioposterior) end of a rib bone where two articular surfaces are divided by a bony ridge. The larger one of the two surfaces articulates with the superior costal facet of the corresponding thoracic vertebra, while the smaller one with the inferior costal facet of the vertebra above.

The head of rib is marked by a kidney-shaped articular surface, divided by a horizontal crest into two facets for articulation with the depression formed on the bodies of two adjacent thoracic vertebræ; the upper facet is the smaller; to the crest is attached the interarticular ligament.

The articulations of the heads of the ribs (or costocentral articulations) constitute a series of gliding or arthrodial joints, and are formed by the articulation of the heads of the typical ribs with the costal facets on the contiguous margins of the bodies of the thoracic vertebrae and with the intervertebral discs between them; the first ...

2023年7月14日 · The typical rib consists of a head, neck and body: The head is wedge shaped, and has two articular facets separated by a wedge of bone. One facet articulates with the numerically corresponding vertebra, and the other articulates with the vertebra above.

Typical ribs include ribs 3-9, and they feature a shaft (or body), head, neck, groove, tubercle, and anterior extremity. The anterior extremity is concave and porous, allowing for the attachment of the costal cartilage at the front of the thoracic cage.

The posterior end of a typical rib is called the head of the rib (see Chapter 7.3 Figure 7.3.8). This region articulates primarily with the costal facet located on the body of the same numbered thoracic vertebra and to a lesser degree, with the costal facet located on …

2025年1月27日 · The rib cage is a bony framework in the thoracic region that provides structural support and protection for vital organs such as the heart and lungs. It is composed of 12 pairs of ribs, the sternum (breastbone), and thoracic vertebrae.

2024年10月29日 · What is the rib cage? Your rib cage is the cage-like structure of bones that frames your chest cavity (thoracic cavity). It’s also called your thoracic cage. Your 24 ribs (12 on each side) wrap around the sides of your torso from front to back. They connect to your thoracic spine in the back and your sternum (breastbone) in the front.

2023年7月10日 · Each rib articulates posteriorly with two thoracic vertebrae; by the costovertebral joint. An exception to this rule is that the first rib articulates with the first thoracic vertebra only. According to their attachment to the sternum, the ribs are classified into three groups: true, false, and floating ribs.