Respiratory Flashcards
What is the function of thoracic wall
1) protection
2) resisting negative pressure generated from elastic recoil
3) provides attachment for and supporting the weight for upper limbs
4) provides attachment of muscles of the upper limb, neck, abdomen back and respiratory
How does the thoracic cage differ from the thoracic wall
Thoracic cage is the bony portion on the thoracic wall
What vertebral level does the sternal angle occur at
T4-T5 Iv disc
List everything included in the thoracic cage
12 vertebrae
12 ribs (cartilages)
3 parts on the sternum
What vertebral level is the superior aperture attached to
T1
What travels through the superior aperture
Trachea, esophagus, vessels, nerves
What structure nearly separates the thoracic and abdominal cavity creating the inferior thoracic aperture
Diaphragm
What structures pass through the diagrapm, and at what vertebral level
Aorta (T12)
Esophagus (T10)
Inferior vena cava (T8)
Where does the clavicle attach to on the manubrium
Clavicular notch
What is the joint between the manubrium and the body called. What type is it
Manubriosternal joint
Secondary cartilagenous joint = symphysis
What is the joint between body and the xiphoid called
Xiphisternal Primary cartilaginous (synchrondrosis)
What happens to the Xiphoid process when we get older
Ossifies
Describe the 3 different types of ribs
True = 1-7 as they attach aneteriorly to the sternum False = 8-10 as they attach indirectly to the sternum Floating = 11-12 they don’t attach to the sternum
Describe a typical rib (what numbers does this occur at)
ribs 3-8: Two heads separated by a crest which attach to the superior and inferior costal facets forming costoverterbrae joints
Then neck which connects the body
Tubercle which has an articular and non articular part. Articular part articulates with the transverse processes forming the transvertebral joints
Angle of curvature occurs
*synovial plane joints
What numbers are the atypical ribs at and what makes them atypical
Rib 1 has harsh angle, short, and broad. It also has two shallow horizontal groove across its superior surface for the subclavian vessels (artery and vein) separated by scalene tubercle.
Rib 2 has tubercles for attachment of serratus anterior and posterior scalene muscles
Ribs 1, 10, 11, 12 only have one head
11th and 12th has no neck nor tubercles