Bones and joints of the thoracic wall Flashcards
Where is the manubrium on the sternum?
Top section
Includes the suprasternal notch, facets for 1st costal cartilage and sternoclavicular joint and demi facet for 2nd costal cartilage
Which bones articulate with the manubrium at its superolateral angles?
Clavicle
1st ribs (kind of but more lateral)
What is the manubriosternal?
The joint between the sternal body and manubrium
What type of joint is the manubriosternal?
A secondary/symphysis cartilaginous joint
What is the name of the notch formed by the superior border of the manubrium?
Suprasternal notch
What is the sternal body?
Main bit/body of the sternum
What is the xiphoid process?
Continuous with sternal body
(end bit of the sternum)
What vertebral level is the xiphoid process?
T9/10
What vertebral level is the sternal angle at?
T4
Where is the facet for the 2nd costal cartilage located?
At the stern manubrial joint (or sternal angle)
Which vertebrae does the 5th rib articulate with
T4 and T5
What are the exceptions to the articulation of ribs?
1st rib - articulates with T1 alone
What are the parts of a typical rib?
Head
Neck
Tubercle
Angle
Costal groove
Costal cartilage
What part of the vertebrae articulates with the rib tubercle?
Transverse process
What neurovascular structures lie within the costal groove and in what order?
Veins
Arteries
Nerves
Which ribs are true ribs?
1-7
Which ribs are false ribs?
8-10
Which ribs are floating ribs?
11-12
What are the differences of the first rib?
Scalene tubercle
Groove for subclavian artery
Groove for subclavian vein
Flat
What is the scalene tubercle for?
Attachment of the anterior scalene muscle of the neck
What is the anterior scalene muscle of the neck?
An accessory respiratory muscle in forced inspiration
Where is the subclavian artery groove located?
Posterior to the scalene tubercle
Where is the subclavian vein groove located?
Anterior to the scalene tubercle
Which part of the rib articulates with the demi-facets on the vertebral body?
Inferior facets on the head of the rib
Which part of the rib articulates with the costal/articular facet on the tip of the vertebral transverse process?
Facets on the tubercles
What are the features of a typical rib?
Articulates with two vertebral bodies (the one of same number and one directly above it) and one vertebral transverse process (of the vertebral body of same number).
