Exam 3 Flashcards
The thorax is located between the ____ and _____.
neck and abdomen
The thorax provides protection for…
the heart, lungs, and some abdominal organs (liver, spleen, kidneys)
What does the superior thoracic aperture communicate with?
head, neck, and upper limbs
The inferior thoracic aperture is separated from the abdominal cavity by the _____
diaphragm
What forms the thoracic cage?
thoracic vertebrae, ribs, sternum
There are usually ____ ribs on each side of the thorax
12
Typical ribs, ribs # ___-____ have a head, neck, tubercle, and shaft
3-9
The head of a typical rib has two facets for articulation with…
the numerically corresponding vertebra and the vertebrae superior to it
The tubercle of a typical rib articulates with…
the transverse process (TP) of the corresponding vertebra
The shaft (body_ of a typical vertebra has a costal groove for what 3 structures?
vein, artery, and nerve
Ribs 1-7 are considered ___ ____ because they are connected to the sternum
true ribs
Ribs 8-10 are called ____ ____
false ribs
Ribs 11 and 12 are called ____ ____
floating ribs
Which rib is the broadest and most curved of all ribs, as well as the shortest of the true ribs?
1st rib
True or False: The 1st rib only has a single facet on its head because it only articulates with T1.
True
What vein crosses the 1st rib anterior to the scalene tubercle?
subclavian vein
The scalene tubercle of the 1st rib is an attachment point for what muscle?
anterior scalene
The subclavian artery passes _____ to the 1st rib
posterior
What trunk of the brachial plexus passes posterior to the scalene tubercle of the 1st rib.
inferior trunk
The costal cartilages contribute to the _____ of the thoracic wall.
flexibility
The costovertebral joints are individual ____ joints.
synovial
The ___ ____ is the portion of the inferior aperture of the thorax formed by the articulated cartilages of the seventh to tenth ribs
costal margin
The ____ ligament is associated with the head of the rib.
radiate
The superior costotransverse ligament runs from what to what?
neck of the rib to the tip of the TP of the vertebra above