Download SESSION 5 - Oral Cavity - Hatzalah of Miami-Dade

SESSION 5 - Oral Cavity
1. Muscles from the styloid process pass to the tongue, pharynx and hyoid bone.
Name these muscles and their nerve supply.
2. What is special about alveolar bone?
3. There are 4 genial tubercles on the anterior inside of the mandible. Muscles
from the upper two pass to the ………. and are supplied by the ………..
nerve. Muscles from the lower two pass to the …… and are supplied by the
………. nerve.
4. The inferior alveolar (dental) nerve lies relatively nearest to the gum margin in
(a) childhood, (b) middle age or (c) old age.
5. Which two bones form the hard palate?
6. Hyoglossus (supplied by the ……. nerve), is a useful topographical landmark.
Can you name 3 structures that lie immediately lateral to it and 2 that lie
immediately medial to it?
7. What two muscles arise from the pterygomandibular raphé?
8. Does the sublingual gland lie supero/medial or infero/lateral to mylohyoid?
9. Is it correct that mylohyoid inserts mostly into the hyoid bone but with a little
muscle inserted into its other half?
10. What is the first nerve carrying C1 fibres to leave the hypoglossal nerve
having hitch-hiked along it?
11. Is the secretion of the submandibular gland mucous, serous or mixed?
12. Does the duct of the submandibular gland emerge from the deep or superficial
part of the gland?
13. The submandibular duct has a nerve curling around it. Is it the
glossopharyngeal, lingual or hypoglossal?
14. The submandibular duct opens (a) on the side of the tongue, (b) opposite the
2nd upper molar tooth or (c) under the tongue.
15. Concerning the secretomotor fibres for the submandibular and sublingual
glands - complete the gaps. The nuclei are in the …….. ………. nucleus and
reach the facial nerve by way of the …….. ……… In the middle ear the fibres
leave as the ……… ……… which joins the ……. nerve which is a branch of
the ……… division of the trigeminal nerve. The fibres leave this nerve and
pass into the ……… ganglion where they ……… before passing to the two
glands.
16. As per the general pattern of the parasympathetic ganglia, apart from
parasympathetic fibres, there are also two other types of nerve that pass
through each ganglion. What are they?
17. All the muscles of the tongue are supplied by the ……… nerve except one,
……… , which is supplied by the ……… plexus which consists of ……… ,
……… and ………..
18. An arch on each side separates the oral cavity from the oropharynx. Which
arch is it?
19. What is the difference between a filiform and a fungiform papilla?
20. Why do we say that the vallate papillae, lying anterior to the sulcus terminalis,
really belong to the posterior third of the tongue?
21. What nerve carries taste from the anterior two thirds of the tongue? Where are
its cells bodies?
22. What is the nerve supply (taste and general sensation) of the posterior third of
the tongue?
23. There is sensation and a little taste in the valleculae which is supplied by
which branch of which nerve?
24. In a lesion of the hypoglossal nerve, does the tongue, when protruded, pass to
the side of the lesion or away from it? Why?
25. Name all the lymphatic tissue in Waldeyer's ring.
26. In tonsillectomy bleeding can be a problem therefore it is essential to know the
blood supply of the palatine tonsil. What is it?
27. Why is pain from the palatine tonsil referred to the middle ear?
28. What two really important structures could be damaged by a surgeon straying
too deeply during a tonsillectomy?
29. The soft palate closes off the oropharynx from the nasopharynx during
swallowing. What two muscles are essential for this and what are their nerve
supplies?
30. How many teeth does an adult have? How does this number differ from the
first dentition of children?
31. What is the landmark within the mouth that a dentist uses for finding the
inferior alveolar nerve for a nerve block of the lower teeth? Why does the
tongue also go numb?