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BODY SECTIONS and SURFACE REGIONS. Body planes and sections. Abdominopelvic Surface Regions. Surface Regions Tic- Tac -Toe. Right hypochondriac Left hypochondriac Right lumbar Left lumbar Right iliac left iliac Epigastric Umbilical Hypogastric. MAJOR BODY CAVITIES.
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Surface Regions Tic-Tac-Toe • Right hypochondriac • Left hypochondriac • Right lumbar • Left lumbar • Right iliac • left iliac • Epigastric • Umbilical • Hypogastric
1. Dorsal Body Cavity • contains & protects fragile nervous system organs. • Cranial Cavity – inside the skull; encloses the brain • Vertebral Cavity – inside the bony vertebral column; encloses the spinal cord
2. Ventral Body Cavity • Anterior and larger than the dorsal cavity • Thoracic Cavity – superior part • surrounded by ribs and muscles of chest • Contains heart and lungs • Pleural Cavities – 2 lateral cavities each holding a lung • Mediastinum – medial location that holds the heart (inside the pericardial cavity), esophagus, and trachea • Abdominopelvic Cavity – inferior part • Abdominal cavity – superior part; contains stomach, intestines, spleen, liver • Pelvic cavity – inferior part, contains the bladder, some reproductive organs, and the rectum
Diaphragm • Dome shaped muscle that separates the thoracic and abdominopelvic cavities