body cavities Flashcards
body cavity
a separate, enclosed space within the body that houses internal organs
dorsal body cavities
cranial cavity and vertebral cavity
ventral body cavities
thoracic cavity and abdominopelvic cavity
thoracic cavities
pleural, mediastinum/mediastinal, and pericardial
pleural cavities contains
lungs
mediastinum/mediastinal cavity contains
heart, trachea, and esophagus
pericardial cavity contains
only the heart
abdominopelvic cavities
abdominal and pelvic
abdominal cavity contains
digestive structures
pelvic cavity contains
urinary bladder
function of the ventral body cavity
provides protection, allow organ movement, prevent friction
function of the dorsal body cavity
cushion and protect the central nervous system
ventral cavities are lined by
serous membrane
two layers of the serous membrane
parietal layer and visceral layer
parietal layer
lines internal surface of the body wall; toward outside
visceral layer
covers external surface of specific organs; touches organs
between serous membrane layers is
serous cavity
the serous cavity contains
serous fluid
function of serous cavity
reduce friction between moving organs
membranes of thoracic cavity
pericardium and pleura
pericardium
serous membrane around the heart
pericardium contains
parietal pericardium, pericardial cavity, and visceral pericardium
pleura
serous membrane around the lung
pleura contains
parietal pleura, pleural cavity, and visceral pleura
membrane of the abdominopelvic cavity
peritoneum
peritoneum contains
parietal peritoneum, peritoneal cavity, visceral peritoneume
parietal peritoneum
lines internal walls of the abdominopelvic cavity
peritoneal cavity
potential space with serous fluid
visceral peritoneum
covers surface of most digestive organs
number of abdominopelvic regions
nine
number of abdominopelvic quadrants
four
abdominopelvic regions
right hypochondriac, epigastric, left hypochondriac, right lumbar, umbilical, left lumbar, right iliac, hypogastric, left iliac
abdominopelvic quadrants
right upper, left upper, right lower, left lower