Chest Wall Flashcards
Which bone assists in the formation of the thoracic cage in the protection of vital organs?
Sternum
Which bone is classed as part of the appendicular skeleton?
Clavicle
Name the 3 parts of the sternum from superior to inferior.
Manubrium, Body, Xiphoid Process
Which bony feature of the sternum can be palpated and is useful to locate the attachment of the 2nd costal cartilage?
Sternal angle
The xiphoid process marks the inferior extent of which organ, and must be avoided during CPR?
Heart
What does the tubercle articulate with?
Transverse process of thoracic vertebra
The sternal angle lies in an axial plane corresponding to the intervertebral disc between which two thoracic vertebrae?
T4 and T5
Which ribs are classed as floating and why?
11 and 12, no cartilage that extends to anterior side of body
During inspiration, in which direction do the ribs move?
Superiorly
What do ribs 11 and 12 articulate with?
Thoracic vertebrae
What is the landmark at the top of the manubrium?
Jugular notch
What is the line down the sternum?
Midsternal line
Why is the sternal angle a better landmark than the nipple?
Fat underneath the nipple can affect the location
What is the xiphoid process a landmark for?
Inferior aspect of heart and superior aspect of liver
Why is the costal margin useful?
Helps distinguish thoracic and abdominal regions
Where is the nipple roughly located?
4th thoracic dermatome.
What is the line running down from axillary?
Midaxillary line
Which ribs are false and why?
8-10, no individual costal cartilage - they join with 7
Name the part of sternum assoicated with articulation of clavicle.
Clavicular notch
How many costal notches on sternum and why?
seven, 7,8,9,10 all share same costal cartilage
What does the head of rib articulate with?
Thoracic vertebrae
What does the upper and lower sides of head articulate with?
Upper - superiror vertebrae
Lower - inferior vertebrae
What no. vertebrae does the head of rib 5 articulate with?
4 and 5
What is the space that runs inferiorly on the rib?
Costal grove
What runs through the costal grove?
Neurovasuclar bundle
What is the name of the top opening of the thoracic cavity?
Superior thoracic aperture
