Human Body Cavities, abdominopelvic devisions, and anatomical planes

body cavity functions

protect organs (ex. shock from jumping and landing) and permits growth of organs and movement.

dorsal body cavity

contains cranial cavity (brain) and vertebral cavity (spinal cord)

ventral body cavity

contains thoracic cavity and abdominopelvic cavity separated by the diaphragm

visceral membranes vs parietal membranes

visceral = inner lining of a membrane parietal = outside lining of a membrane

pleurae

surrounds the lungs (pleural space can also be pleural cavity)

peritoneum

surrounds most abdominal organs/lines abdominal cavity

pericardium/pericardial sac

contains the heart and the pericardial cavity/space

what is the name of the cavity that contains the lungs?

thoracic cavity

what are the spaces within the thoracic cavity that surround each lung?

right and left pleural cavities (intrapleural spaces) - to allow the lungs to move with less friction during respiration

what is the name of the cavity containing the space between the lungs?

mediastinum - upper portion containing blood vessels, trachea, esophagus, and thymus lower portion contains the pericardial sac

pelvic cavity

separated from the abdominal cavity by the brim of the pubis

coronal

anterior/posterior

sagital

left/right

transverse

superior/inferior

middle three abdominopelvic regions (top to bottom)

epigastric region, umbilical region, hypogastric/pelvic region

left three abdominopelvic regions (top to bottom)

left hypochondriac region, left lumbar region, left inguinal region

right three abdominopelvic regions (top to bottom)

right hypochondriac region, right lumbar region, left inguinal region