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The Thoracic Cavity
notes from lecture
22
Anatomy
Professional
10/03/2011

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Cards

Term
The cranial boundary of the thoracic cavity is the _____.
Definition
thoracic inlet
Term
The caudal boundary of the thoracic cavity is the _____.
Definition
diaphragm
Term
The dorsal boundary of the thoracic cavity is the _____.
Definition
thoracic vertebral bodies
Term
The ventral boundary of the thoracic cavity is the _____.
Definition
sternebrae
Term
The lateral boundaries of the thoracic cavity are the _____.
Definition
ribs & intercostal muscles
Term
The thoracic cavity occupies the _____ portion of the thorax.
Definition
cranial-dorsal
Term
The boundaries of the thoracic inlet include _____.
Definition
cranial part of sternum (manubrium), first rib pair & costal cartilage, and body of first thoracic vertebrae
Term
The line of plural reflection lies _____.
Definition
along horizontal part of 8 & 9 costal cartilage; across 10 & 11 costal cartilage; across middle of last rib; passing medially to 2 lumbar transverse process
Term
_____ muscles lie dorsal to the transverse processes of vertebrae.
Definition
Epaxial
Term
_____ muscles lie ventral to the transverse processes of vertebrae
Definition
Hypaxial
Term
The _____ muscle system lies closest to midline and runs from skull to ilium.
Definition
transversospinalis
Term
The _____ muscle system runs from the skull to the ilium.
Definition
longissimus
Term
The _____ muscle system runs from the 1st rib to the ilium.
Definition
iliocostalis
Term
Scalarius M.
Definition
attached to transverse processes of cervical veterbrae & first few ribs
Term
Serratus Dorsalis Cranialis M.
Definition
attached from dorsal raphe to proximal aspect of ribs 1-10
Term
External & Internal Intercostal Mm.
Definition
work together between ribs
Term
Serratus Dorsalis Caudalis M.
Definition
from dorsal raphe to proximal aspect of ribs 10-13
Term
Scalerius M.
Definition
pulls first few ribs cranially
Term
Serratus Dorsalis Cranialis M.
Definition
lifts ribs dorsally & cranially
Term
Serratus Dorsalis Caudalis M.
Definition
lifts ribs dorsally & caudally
Term
External Intercostal Mm.
Definition
run in the caudoventral direction
Term
Internal Intercostal Mm.
Definition
run in the cranioventral direction
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