Skeletal system of Thoracic SEGMENTED MODEL

Description

This is high detailed model. Size 507 MB without zip. 1 files . The thoracic portion of the skeletal system is a crucial component of the human (and many animal) skeleton, playing a vital role in protecting internal organs and facilitating respiration. Here's a breakdown of its key elements: Thoracic Vertebrae: There are 12 thoracic vertebrae (T1-T12) that form the posterior part of the thoracic cage. These vertebrae articulate with the ribs. They are characterized by the presence of costal facets, which are points of articulation with the ribs. Ribs: There are 12 pairs of ribs. The first 7 pairs are called "true ribs" because they connect directly to the sternum via costal cartilage. The next 3 pairs are "false ribs" because their costal cartilage connects to the cartilage of the ribs above them. The last 2 pairs are "floating ribs" because they do not connect to the sternum at all. Sternum: The sternum is a flat, elongated bone located in the anterior midline of the thorax. It consists of three parts: the manubrium, the body, and the xiphoid process. It provides attachment for the ribs and the clavicles. Key Functions: Protection: The thoracic cage protects vital organs, including the heart and lungs. Respiration: The ribs and the muscles associated with them play a crucial role in breathing. Support: It provides structural support for the upper body. In summary, the thoracic skeletal system is a complex structure that provides protection, support, and aids in…