Body Cavities Flashcards
2 types of internal cavities
Dorsal body cavity
Ventral body cavity
encloses the organs of the nervous system (brain and spinal cord)
Dorsal body
2 subdivisions of the dorsal body cavities
cranial cavity
vertebral canal
houses the brain
cranial cavity
“internal organs”
viscera
houses the vast majority of our internal organs
ventral body caviity
membranes that cover the brain and spinal cord
meninges
houses the spinal cord
vertebral canal
more superior to the abdominopelvic cavity
houses the heart and the lungs
Thoracic cavity
2 major subdivisions of ventral body cavities
thoracic cavity
abdominopelvic cavity
organs of the abdominopelvic cavity are horsed within the
peritoneal cavity
contains the pelvis, urinary bladder, urethra, rectum, large intestine, and reproductive organs
pelvic cavity
section of the thoracic cavity that houses the heart and its major blood vessels, thymus, trachea, and esophagus
medial mediastinum
2 sections of the thoracic cavit
2 lateral pleural cavities
medial mediastinum
section of thoracic cavity that encloses the lung
lateral pleural cavities
enclosed by abdominal muscle
abdominopelvic cavity
abdominal cavity consists of
superior abdominal cavity and inferior pelvic cavity
contains the majority of the digestive organs such as stomach, intestines, liver, and spleen
abdominal cavity
how many layers does the serous membrane have?
double layered
layer covering the internal organs
visceral serous membrane
walls of the body cavities and the surface of internal organs are in contact with membranes called
serous membranes
layer that lines the wall pf the cavities
parietal serous membrane
is there air between the visceral and parietal serous membranes?
no
house between lungs
mediastinum
parietal serous membrane is in close contact with the
body cavity wall
space within chest wall and diaphragm
thoracic cavity
space between diaphragm and pelvis
abdominal cavity
space within pelvis
pelvic cavity
covers organs
visceral serous membrane
fluid-filled space between the membranes
cavity
outer membrane
parietal serous membrane
membrane around the heart
Pericardium
membrane around the lungs
Pleura
membrane around abdominopelvic cavity and its organs
peritoneum
cavity of heart
Pericardial cavityc
cavity of lungs
pleural cavity
parts of the pericardium
visceral pericardium
parietal pericardium
pericardial cavity
cavity around the abdominopelvic cavity and its organs
peritoneal cavity
covers heart
visceral pericardium
reduces friction in heart
pericardial cavity
thick, fibrous
parietal pericardium
covers lungs
visceral pleura
parts of peritoneum
visceral peritoneum
parietal peritoneum
peritoneal cavity
reduces friction of lungs
adhere lungs to thoracic wall
pleural cavity
parts of pleura
visceral pleura
parietal pleura
pleural cavity
lines inner wall of thorax
parietal pleura
covers, anchors organs
has the double layers called mesenteries
visceral peritoneum
lines inner wall of the abdominopelvic cavity
parietal peritoneum
reduces friction
peritoneal cavity
regions of double-folded visceral peritoneum
mesenteries
what location does some abdominal organs that are tightly adhere to the posterior body wall and are covered by peritoneum only on their peritoneal cavity side
retroperitoneal location
organs with retroperitoneal positions
kidneys, uterus, adrenal glands, large portion of pancreas, parts of the large intestine, urinary bladder
inflammation of pericardium
pericarditis
inflammation of pleura
pleurisy
inflammation of peritoneum
peritonitis