Anatomy: Body Cavities and Membranes

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viscera

internal organs

visceral

membranes that directly cover the organs

parietal

membranes away from the organs

dorsal cavity

has the crainal and spinal cavities

crainal cavity

has the brain

spinal cavity

the back bone

ventral cavity

has the Thoracic and adominopelvic cavities

thoracic cavity

has the heart and lungs

Pleural cavity

has lungs

pericardial cavity

has heart

mediastinum

membranous partition that lies between the heart and lungs

abdominopelvic cavity

has abdominal and pelvic cavity

abdominal cavity

sup. portion of ab/pelvic cavity (has stomach spleen kidneys etc)

Pelvic cavity

inf. portion of ab/pelvic cavity (has urinary blader, uterus, etc.)

serous membrane

lines all body cavities and covers all internal organs

serous fluid

secreted by serous membrane, reduces friction between organs

parietal pleural

lines rib cage outside of lungs

visceral (pulmonary) pleural

membrane covering lungs

pleuriesy

inflamation of the pleural membranes

parietal pericardum

double layered loose, fibroussac, outside heart and visceral pericardum

visceral pericardium

covers heart

peritoneum membrane

lines ab/pelvic cavity

parietal peritoneum

lines abdonminal cavity

visceral peritoneum

cover internal organs in the ab cavity

mesentary

double layered folds of connective tissue that extends from post. surface of ab cavity to hald internal organs in place, contains nerves and blood vessals

greater omentum

mesentary extends downward from stomach to front of intestines, to pelvis and back up to the top of the colon

lesser omentum

smaller fold of mensentery that extends between the liver, sup. suface of the stomach and a portion of the deodenum

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