University:
Kentucky State University
Course:
BIO 301 | Human Anatomy
Academic year:

2024
Views:

334

Pages:

4
Author:

Kundulu8mbj

Thoracic (Chest) cavity: Bounded by:  Anteriorly: Sternum  Laterally: Ribs, costal cartilages and contents of intercostal spaces  Posteriorly: Thoracic vertebrae  Inferiorly: Diaphragm  Superiorly: The thoracic outlet, an oblique plane passing from the superior border of the sternum, between the R&L first ribs to the first thoracic vertebra 2 The Mediastinum:  A median region that extends from the root of the neck to the diaphragm. It’s bounded by:  Anteriorly: Sternum  Posteriorly: Thoracic vertebrae  Laterally: Pleurae and lungs.  Inferiorly: Diaphragm  The mediastinum is divided by a plane passing from the sternal angle (between the manubrium and the body of the sternum) to the lower border of T4 into superior and inferior parts. The inferior mediastinum is divided into anterior, middle and posterior parts by the pericardium. 3 4 5