105- Bony Thorax Test Flashcards
What shape is the thorax
Conical
Which side of thorax is longer: anterior or posterior
Posterior
Purpose of bony thorax
Protect spinal cord, heart, lungs. Attachment for upper limbs
Where is pleural effusion mostly seen at on a cxr
Costophrenic angled
Why do we do an RAO for sternum
Move spine out of way, use heart shadow for density differences
Sternum reaches true density by what age
40
Sternum is classified as what kind of bone
Flat
What ribs are considered true ribs
T1-7
What ribs are considered false ribs
T8-12
What ribs are considered floating ribs
T10-12
How long is the sternum
Around 6”
Where is the most common fracture site for the ribs
Angle of ribs (lateral border)
What is a sternal puncture used for
Extract bone marrow
Costal groove contains what
Nerves and blood vessels
Jugular notch lies at what vertebrae
T2-3
Sternal angle lies at what vertebrae
T4-5
Xiphoid process lies at which vertebrae
T9-10
What part of the sternum is the longest? And how long
Body, 4 inches
What type of cartilage is the costal cartilage
Hyaline cartilage
Anterior ends of ribs lie how far below the posterior end
3-5 inches
What are the species between the ribs called
Intercostal spaces
Which rib is the shortest and broadest
1st rib
Which rib is the narrowest rib
12th rib
What does a typical rib consist of
Head
Neck
Tubercle
Body