1. Section 1.3 Body Cavities and Membranes Objectives: 1. List the cavities of the body and state their locations. 2. Name the organs located in each of the body cavities. 3. Name the membranes that line each body cavity and adhere to the organs.

2. Body Cavities and Membranes Posterior (Dorsal) Cavity 1. Cavity subdivided into the cranial cavity and the vertebral cavity. 2. Cranial cavity houses the brain. 3. Vertebral cavity runs through the vertebral column and encloses the spinal cord

3. Posterior Body Cavity Membranes Lined by three (3) membranous layers called the meninges. 1.Inner- tightly covers the brain and spinal cord 2.The space between the middle layer and inner layer is filled with cerebrospinal fluid.

4. Anterior (Ventral) Body Cavity 1. Divided into 2 regions called the Thoracic Cavity and the Abdominopelvic Cavity (which is further divided into the abdominal cavity and the pelvic cavity) 2. Separated by the diaphragm 3. Lined with serous membranes

5. Name of the CavityOrgansMembranes POSTERIOR (DORSAL) BODY CAVITY Cranial cavityBrainMeninges Vertebral cavitySpinal CordMeninges ANTERIOR (VENTRAL) BODY CAVITY Thoracic cavityLungsPleura HeartPericardium Abdominal cavityDigestive organsPeritoneum KidneysPeritoneum Pelvic cavityReproductive organs,Peritoneum Bladder, rectumPeritoneum Cavity Chart

7. Abdominopelvic Quadrants Divide the abdomen into four quadrants: Right upper and left upper quadrants Right lower and left lower quadrants

8. Abdominopelvic Regions Abdominopelvic regions divide the abdomen into nine regions

9. 1. Oral cavity 2. Nasal cavity 3. Orbital cavities 4. Middle ear cavities 5. Synovial cavities Other Body Cavities