Ventilation/Mastication Flashcards
TLC
5.5-6 L
max volume of air that can be exhaled after max inhalation
vital capacity
~4.5L
volume of air moved in/out of lungs during ventilation cycle
tidal volume
~.5 L
name the true, false and floating ribs
true 1-7
false 8-10
floating 11-12
what articulation ossifies late in life?
manubriosternal aka sternal angle
what makes up a costovertebral joint?
head of rib and two adjacent vert bodies and the IV disc
typical/atypical ribs
typical 2-9
atypical 1, 10-12
what makes up a costotransverse joint?
costal tubercle of rib w costal facet of TP
where are costochondral articulations?
ribs 1-10 + costal cart
where are costosternal articulations?
costal cart of ribs 1-7 + sternum
what type of articulations are costochondral?
synchondrosis
what type of articulations are costosternal?
1 = synchondrosis 2-7 = synovial
what type of articulations are interchondral?
synovial
what type of articulations are costotransverse?
synovial
what type of articulations are costovertebral?
synovial
what type of articulations are manubriosternal and xiphisternal?
synchondrosis
where are interchondral articulations?
5-10 articulate w cart above
upper ribs vs lower ribs movement
upper: pump handle
lower: bucket handle
in rib elevation, which moves more: sternum or manubrium?
sternum
purpose of bucket handle movement
inc transverse diameter of lower thorax
forced expiration rib movement is accompanied by slight…
TS flexion
inspiration is initiated by the _______ which in turn, ____________
diaphragm contracting
inc intraabdominal pressure