Thoracic Cavity KIA
The "true ribs" are attached directly to the sternum anteriorly. These ribs include ribs:
1-7
The seventh rib articulates with the ______ and ______ vertebral bodies.
5th; 7th
The clavicular portion of the pectoralis major muscle CANNOT:
aid in exhalation if the arms are overhead
During deep inspiration, the upper rib cage expands more in a(n) ____ direction and the lower rib cage expands more in a(n) ____ direction.
anterior; lateral
The central tendon of the diaphragm becomes stabilized by:
compression on the abdominal viscera
The active contribution of the lateral pterygoid in relation to the disc is it:
eccentrically controls posterior translation of the disc during elevation
Actions of the medial pterygoid include:
elevates and contralaterally deviates
The structure that tethers the disc from moving too far anteriorly is the:
inferior retrodiscal lamina
Contraction of the diaphragm causes:
inhalation
The muscle that has attachments to the articular disc is the:
lateral pterygoid
Muscles contracting during mandibular deviation to the right include:
left medial and lateral pterygoid
Muscles of mandibular elevation include:
masseter and temporalis
Muscles that can cause ipsilateral deviation.
masseter and temporalis
Contraction of the diaphragm results in all the following EXCEPT:
negative pressure results on the abdominal viscera
Muscles NOT attached to the superior and inferior borders of the ribs.
outermost intercostal
With reciprocal clicking, the first click is ______ and the second is ______.
recapturing; dislocating
The manubriosternal joint is attached to rib
rib 2
The arthrokinematic motion during mandibular depression is ______ in the INFERIOR space and ______ in the SUPERIOR space.
roll; glide
Ribs 8 through 10 are "false ribs" because:
they do not attach directly to the sternum.
The costovertebral joint is an articulation between the ________ and the ________.
vertebral body; rib head