have no tongue movement and the tongue would atrophy. Shortening the
posterior belly of the digastric (answer c)would worsen the problem by
pulling the tongue up and back within the mouth. Cutting the pterygo-
mandibular raphe (answer d)would serve no function. Speech therapy
(answer e)would be the second best answer in that it might stretch the
frenulum over time.
328.The answers is a.(Moore and Dalley, pp 968, 975.)Aqueous humor
is produced at the ciliary process (answer c),which is in the posterior
chamber of the eye, and then flows out the pupil into the anterior chamber
of the eye, where it normally drains through the trabecular meshwork that
leads to the scleral venous sinus (or canal of Schlemm). This trabecular
meshwork can become plugged with red blood cells, especially if some
blood clotting occurs. If the trabecular meshwork plugs then intraocular
pressure can build up in the eye, which if excessive, can lead to blindness.
This is why the intraocular pressure should be monitored daily until the
blood clears. Generally when intraocular pressure increases suddenly
(hours) it is very painful, and the pressure must be relieved by inserting a
small needle or sharp object at the corner of the cornea and applying pres-
sure elsewhere, thus releasing fluid in a procedure called “burping the eye.”
Usually as the intraocular pressure is normalized the eye pain subsides.
Gradual increases (over days or weeks) in intraocular pressure however,
may go undetected because they are not always painful (such as in the case
of glaucoma). The ciliary muscle which has zonular fibers (suspensory lig-
ament of the lens) attached to it (answer b)controls the shape of the lens,
but does notdrain aqueous humor. It also lies in the posterior notanterior
chamber of the eye. The lens (answer d)isnotthe site of drainage of aque-
ous humor and is located in the posterior chamber of the eye.
458 Anatomy, Histology, and Cell Biology