Body Cavities and Membranes

Body Cavities and Membranes - Body Cavities and Membranes:...

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Body Cavities and Membranes: there are two major closed body cavities within the axial portion of the body: Dorsal Body Cavity -Located nearer to the dorsal or posterior surface of the body. Subdivided into cranial and vertebral or spinal. They are continuous with one another. They house vital and very fragile organs – brain and spinal cord. Ventral Body Cavity - More anterior and larger. Two major subdivisions: thoracic and abdominopelvic. The thoracic is surrounded by the ribs and muscles of the chest and is subdivided: lateral pleural cavities each containing a lung. and medial mediastinum which contains the heart and remaining thoracic organs (esophagus, trachea etc.) Abdominopelvic cavity: Divided into the abdominal cavity which contains the stomach, intestines, spleen, liver, and other organs and the pelvic cavity which contains the bladder, some reproductive organs, and the rectum. Serous Membranes -- the walls of the ventral body cavity and the outer surfaces of the organs
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Body Cavities and Membranes - Body Cavities and Membranes:...

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