600,000,000 air cells in one pair of lungs, and 2,000 pores to a square inch of surface; so you see what quantities of air we must have, and what care we should take of our skin so all the little doors will open and shut right.
now school is dismissed, and I advise you to go and refresh your 600,000,000 air cells by a brisk run in the garden.
Ice has its grain as well as wood, and when a cake begins to rot or "comb," that is, assume the appearance of honeycomb, whatever may be its position, the air cells
are at right angles with what was the water surface.
They won't be able to expand in the oven, they'll burst as the air cells
inflate, the souffle will be vertically challenged, and we're back to perpetuating the myth of the finicky souffle.
Imaging, which included CT brain, MRI brain, and CT sinuses, demonstrated hyperdense soft-tissue opacification of the right frontal, sphenoid sinuses, and ethmoidal air cells
with corresponding decreased T2 signal and osseous erosive changes involving medial orbital wall with soft tissue extending to the orbital apex.
Following a middle ear infection, a sterile fluid accumulation can be seen in petrous apex air cells
; however, in the antibiotic era, extension of middle ear infection into the pneumatized petrous apex is rare.
When the aperture of a telescope is sufficiently large that it receives light that has passed through a multitude of air cells
, the result is a blurred, tremulous image.
Computed tomography of the temporal bone revealed a right-sided, 2 x 2-cm soft-tissue mass in the EAC, with erosion of mastoid air cells
but a normal eardrum and middle ear cavity.
 Bolger et al reported this pneumatisation in 53% of the sinus patients, as an extension of the anterior air cells
(55%) or posterior (45%) ethmoidal air cells
Magnetic resonance imaging of the temporomandibular joint: diagnostic difficulty caused by extensive pneumatization of the mastoid air cells
. Skeletal Radiol.
Grade 0: The air cells
are only in the mastoid process;