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
What do ribs have on their heads
Facets
What ribs do not have necks or tubercular facets
11-12th ribs
The sternoclavicular joint is between
Clavicle and manubrium
The sternoclavicular joint is what kind of joint
Synovial gliding
The sternoclavicular joint has what kind of movement
Freely movable
Costovertebral joints are between what
Head of ribs and demifacets of vertebral bodies
Costovertebral joints are what kind of joints
Synovial gliding
Costovertebral joints have what kind of movement
Freely movable
Costotransverse joints are between what
Tubercle of rib and transverse process
Costotransverse joints are what kind of joints
Synovial gliding
Costotransverse joints have what kind of movement
Freely movable
Sternocostal joints are between what
Costal cartilages and the sternum
Sternocostal joints of the 2-7th rib pairs are what kind of joints
Synovial gliding
Sternocostal joints of the 2-7th rib pairs have what kind of movement
Freely movable
Sternocostal joints of the 1st rib pair are what kind of joints
Cartilaginous synchondroses
Sternocostal joints of the 1st rib pair have what kind of movement
Immovable
Costochondral joints are between what
Ribs and costal cartilage
Costochondral joints are what kind of joints
Cartilaginous synchondroses
Chostochondral joints have what kind of movement
Immovable
Interchondral joints are between what
Costal cartilages of the 6-10th ribs
Interchondral joints of the 6-9th ribs are what kind of joints
Synovial gliding
Interchondral joints of the 6-9th ribs have what kind of movement
Freely movable
Interchondral joints of the 9-10th ribs are what kind of joints
Fibrous syndesmosis
Interchondral joints of the 9-10th ribs have what kind of movement
Slightly movable
Manubriosternal joint is between what
Manubrium and sternal body
The manubriosternal joint is what kind of joint
Cartilaginous symphysis
The manubriosternal joint has what kind of movement
Slightly movable
The xiphisternal joint is between what
Sternal body and xiphoid process
The xiphisternal joint is what kind of joint
Cartilaginous synchondroses
The xiphisternal joint has what kind of movement
Immovable
Blood vessel directly under clavicle
Subclavian vein
Ribs lie in what kind of plane
Oblique
Head of rib articulated with what
Vertebral body
Tubercle of rib articulates with what
Transverse process
How much does the diaphragm move with inspiration/expiration
1 1/2”
What is it called when the sternum is inverted inward
Pectus excavatum
What is it called when the sternum projects outward
Pigeon chest