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Body cavities & membranes
Body cavities & membranes of a&p
18
Biology
Undergraduate 2
08/27/2008

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Term

dorsal body cavity

Definition
made up of the cranial cavity and the vertebral cavity.
Term
cranial cavity
Definition
encloses and protects the brain.
Term
vertebral cavity
Definition
encloses and protects the spinal cord.
Term
ventral body cavity
Definition
subdivided into a superior thoracic cavity and an inferior abdominopelvic cavity by the diaphragm muscle.
Term
abdominoplvic cavity
Definition
contains 4 quadrants and 9 regions. 
Term
thoracic cavity
Definition
divided into 2 pleural cavities each of which contains a lung.
Term
mediastinal cavity
Definition
situated between the 2 pleural cavities
Term
pericardial cavity
Definition
contains the heart.  Found within the mediastinal cavity.
Term

meninges

Definition
group of membranes associated with these membranes.
Term
dura mater
Definition
the most superficial of the 3 meninges membranes.  A tough fibrous connective tissue covering which consists of 2 sublayers covering the brain and one layer covering the spinal cord.
Term
arachnoid (mater)
Definition
the middle meninx and takes its name from the group that contains spiders, Arachnida, because it resembles the structure of a spider's web.
Term
pia mater
Definition
deepest meninx, thin and delicate.  Covers the brain and spinal cord directly.
Term
parietal pleura
Definition

the serous membrane that covers the walls of the pleural cavities

Term
parietal pericardium
Definition
a serous membrane that lines the walls of the pericardial cavity.
Term
visceral pleural
Definition
a serous membrane that tightly covers the lungs.
Term
visceral pericardium
Definition
a serous membrane that tightly covers the heart.
Term
What does the term "parietal" refer to?
Definition
Refers to the wall of the cavity.
Term
What does the term "visceral" mean?
Definition
pertaining to viscera or their outer coverings.
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