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Body Cavities 2


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open body cavities
those opening to the outside of the body
mucous membranes (mucosa)
those membranes lining open body cavities
a thick viscous fluid, lines free surfaces thus protecting against dehydration, abrasion, strong acids and bases
closed body cavities
those that don't open to the outside of the body; don't have mucous membrane, has serous membrane
Dorsal body cavities
Cranial cavity and Vertebral (spinal) canal or cavity
What structure separates the thoracic from the abdominopelvic cavity?
Ventral body cavities
Thoracic cavity: Pleural cavities, Pericardial cavity; Abdominopelvic cavity: Abdominal cavity, Pelvic cavity
Thoracic cavity
chest cavity; superior portion of the ventral body cavity; contain pleural and pericardial cavities and mediastinum
Pleural cavities
surrounds each lung; serous membrane is called pleura
Serous membrane in pleural cavities
Pericardial cavity
surrounds the heart; serous membrane is called pericardium
Serous membrane in pericardial cavity
Abdominopelvic cavity
inferior portion of ventral body cavities
Abdominal cavity
stomach, spleen, liver, gallbladder, small intestines, and most of large intestine; serous membrane called peritoneum
Serous membrane in abdominal cavity
Pelvic cavity
unrinary bladder, part of large intestines and internal organs of reproduction
Cranial cavity
formed by cranial bones and contain brain
Vertebral (spinal) canal or cavity
formed by vertebral column & contain spinal cord and beginning of a spinal nerves
Serous membrane (serosa)
those membranes lining closed body cavities and their organs
Serous fluid
inside the closed body cavities to fill up the space
space between the lungs, is not a true body cavity, is divided into sections containing organs such as the heart, thymus, aorta, trachea, and esophagus

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