Presentation on theme: "Aim: How can we identify and describe the human body cavities?"— Presentation transcript:
1 Aim: How can we identify and describe the human body cavities? DO NOW:
2 A. Body Cavities Two essential functions: Protect organs from accidental shocksPermit changes in size and shape of internal organsVentral body ( Front/anterior cavity)Divided by the diaphragm:Thoracic cavityAbdominopelvic cavity
3 B. Viscera Organs of the thoracic and abdominal pelvic cavities Serous membrane is a thin slippery membrane that covers the visceraParts of the serous membrane:Visceral layerCovers the viscera within the cavitiesParietal layerLines the wall of the cavities
5 C. Serous membrane of the thoracic cavity Pleura-Refers to the lungsSerous membrane of the pleural cavitiesVisceral pleura clings to surface of lungsParietal pleura lines the chest wallPericardium- Refers to the heartSerous membrane of the pericardial cavityVisceral pericardium covers the heartParietal pericardium lines the wall ofthe pericardial cavity.
6 D. The Thoracic Cavity Right and left pleural cavities Mediastinum Separated into regionsRight and left pleural cavitiescontain right and left lungsMediastinumupper portion filled with blood vessels, trachea, esophagus, and thymuslower portion contains pericardial cavitythe heart is located within the pericardial cavity
7 Body CavitiesFIGURE 1–11 The Ventral Body Cavity and Its Subdivisions.
9 E The Abdominopelvic Cavity 1. Peritoneal cavity — chamber within abdominopelvic cavityParietal peritoneum lines the internal body wallVisceral peritoneum covers the organs
10 Abdominal cavity — superior portion Diaphragm to top of pelvic bonesContains digestive organsRetroperitoneal spaceArea posterior to peritoneum and anterior to muscular body wallContains pancreas, kidneys, ureters, and parts of the digestive tract
11 Pelvic cavity — inferior portion Within pelvic bonesContains reproductive organs, rectum, and bladder
12 Body CavitiesFIGURE 1–10 Relationships Among the Subdivisions of the Ventral Body Cavity.12
13 F. Dorsal Body Cavity- Posterior Cranial cavityProtects the brainVertebral canalFormed by bones of vertebral columnContains the spinal cordMeningesLayers of protective tissue that line the cranial cavity and the vertebral canal.
14 Other Cavities Oral (mouth) cavity Tongue and teeth Nasal cavity nose Orbital cavitieseyeballMiddle ear cavitiesSmall bones of the middle earSynovial cavitiesJoints
15 SUMMARYCreate a Concept Map that illustrates today’s topic.