Body Cavities What’s in there??

Body Cavities: Spaces within the body which contain vital organs

Dorsal (Posterior) Cavity: One long, continuous cavity that is located on the back of the body, divided into two sections Cranial Cavity = contains the brain Vertebral/Spinal Cavity = contains the spinal cord

Ventral (Anterior) Cavities: Thoracic Cavity = located in the chest contains the heart in pericardial cavity, lungs in pleural cavities, mediastinum - the region between lungs from sternum to backbone that contains heart esophagus, trachea, etc.

Ventral (Anterior) Cavities: 2a. Abdominal Cavity = upper abdominal cavity; contains the stomach, liver, small intestine, most of large intestine - also contains spleen & gallbladder 2b. Pelvic Cavity = lower abdominal cavity; contains urinary bladder, large intestine, rectum, male/female reproductive organs

Abdominopelvic Cavity: 9 Regions Epigastric Umbilical Hypogastric Hypochondriac (right & left) Lumbar (right & left) Inguinal (right & left)

Abdominopelvic Cavity: 9 Regions

Epigastric Region Superior to umbilical region Contains stomach, liver (and some of large intestine)

Umbilical Region Center-most region, around the navel Contains small intestine, large intestine (and some of the stomach)

Hypogastric Region Inferior to umbilical region Contains small intestine, rectum, urinary bladder, reproductive organs, (and some of large intestine)

Right & Left Lumbar Regions Lateral to umbilical region Contain part of small and large intestines

Left Inguinal Region Lateral (left) to hypogastric region Contains part of small and large intestines

Right Inguinal Region Lateral (right) to hypogastric region Contains appendix, part of small and large intestines

Right & Left Hypochondriac Regions Right Hypochondriac contains liver (and part of stomach) Left Hypochondriac contains spleen (and part of stomach)

Abdominopelvic Cavity: 9 Regions