300.As an ENT you are about to remove a pair of enlarged palatine ton-
sils from an 11-year-old boy who has suffered with their repeated infection
for about 3 years. The palatine tonsils are located between the anterior and
posterior palatine (faucial) folds. The muscles that form these folds are,
respectively, which of the following?
a. Levator veli palatini and tensor veli palatini
b. Palatoglossus and palatopharyngeus
c. Palatopharyngeus and salpingopharyngeus
d. Styloglossus and stylopharyngeus
e. Superior constrictor and middle constrictor
301.Which of the following is true of neural tube development?
a. Closure of the neural tube proceeds in a craniocaudal sequence
b. The basic organization of the neural tube features peripheral neuronal cell bod-
ies and centrally located myelinated processes
c. The primitive neurectoderm cells of the neural tube give rise to both neurons
and all glial components
d. During development, neuronal and glial precursors are born near the central
canal and migrate to the periphery
e. Mature neurons migrate out of the spinal cord to form the sensory ganglia
420 Anatomy, Histology, and Cell Biology