Flashcards in Thoracic Deck (89)
What are 4 characteristics of rib angle?
1) posteriolateral aspect
2) lateral to spinous process
3) illiocostalis muscle attachments
4) key landmark for rib dysfunction -tender / soft tissue restrictions
The superior facet articulates with. V. body above:
Inferior facet articulates with superior facet of v. body below
* articulation occurs at the ribs own numbered vertebrae- Rib 7
Atypical thoracic rib articulations include:
-T1 and T10-T12 and ribs 1, 10-12
T1 is full costal face superiorly that accepts the entire head of the ______ rib. Demifacet inferiorly to accept part of the head of the ______ rib.
T10-12 may have full:
costal facet (pedicles)
T11-12 typically lack _______________ joints
Kinematics or the ribs: upper 1-6 =
motion occurs in the sagittal plane
Kinematics or the upper ribs: During inspiration, upper ribs and sternum increase the AP diameter =
Kinematics or the ribs: lower 7-12 =
Kinematics or the lower ribs: During inspiration, lower ribs increase the transverse diameter =
What are the 3 parts of the diaphragm?
1) costal part
2) sternal part
3) crural part
The costal part of the diaphragm =
upper margins of the lower 6 ribs
The sternal part of the diaphragm =
posterior side of the xiphoid process
The crural part of the diaphragm =
attached to the bodies of the upper 3 lumbar vertebrae - R & L crus
Action of the diaphragm during inspiration is caused by the ________ nerve.
What is the most important muscle of the inspiration?
As the dome (of the diaphragm) lowers and flattens:
increases the vertical diameter of the thorax
** inhale = pressure decreases
As the diaphragm descends, the central tendon moves _________ and becomes _________.
The diaphragm continues to contract resulting in lower 6 ribs __________ and rotate ________.
**interabdominal pressure increases
__________ intrathoracic volume __________ intrathoracic pressure, and __________ abdominal pressure
Quiet expiration is _______ process. Elastic recoil of the ________, ________ and __________
thorax, lungs and diaphragm
Forced expiration =
activation of abdominals and intercostals
What are the primary muscles of inspiration?
diaphragm, intercostals, scalene muscles
What muscles are active during forced inspiration?
Expiratory muscles include:
-4 abdominal muscles
- Internal intercostals
During forward bending (flexion) of the ribs the osteokinematics include _________ rotation of T3-T7. Arthrokinematics include ___________ glide and _________ roll.
During backward bending (extension) of the ribs the osteokinematics include _________ rotation of T3-T7. Arthrokinematics include ___________ glide and _________ roll.