Chap 2, Study Section 3 Flashcards
abdominal cavity
Space below the chest containing organs such as the liver, stomach, gallbladder, and intestines;p also called the abdomen.
cranial cavity
Space in the head containing the brain and surrounded by the skull. Cranial means pertaining to the skull.
diaphragm
Muscle separating the abdominal and thoracic cavities. The diaphragm moves up and down and aids in breathing.
dorsal (posterior)
Pertaining to the back.
mediastinum
Centrally located space outside of and between the lungs.
pelvic cavity
Space below the abdomen containing portions of the intestines, rectum, urinary bladder, and reproductive organs. Pelvic means pertaining to the pelvis, composed of the hip bones surrounding the pelvic cavity.
peritoneum
Double-folded membrane surrounding the abdominal cavity.
pleura
Double-folded membrane surrounding each lung. Pleural means pertaining to the pleura.
pleural cavity
Space between the pleural layers.
spinal cavity
Space within the spinal column (backbones) containing the spinal cord. Also called the spinal canal.
thoracic cavity
Space in the chest containing the heart, lungs, bronchial tubes, trachea, esophagus, and other organs.
ventral (anterior)
Pertaining to the front.
Peritoneum and Other Membranes
Many vital organs are covered and protected by membranes. The peritoneum surrounds abdominal viscera (liver, small and large intestines, stomach), the pleura covers the lungs, the periosteum protects bones, and the meninges are membranes surrounding the brain and spinal cord.
Pleural/Plural
Don’t confuse pleural, which refers to the membranes surrounding the lungs, with plural, which means more than one!