Test 65      (head and neck anatomy)
(only the answers are provided, for detailed explanation please consult standard anatomy textbook such as Snell's Clinical Antomy.)
1. The buccinator muscle:
a. is attached to both jaws opposite the molar teeth
b. is supplied by the facial nerve
c. is continuous with the superior constrictor of the 
d. is a muscle of mastication
e. is pierced by the parotid duct opposite the third 
    upper molar tooth

2. The parotid gland:

a. extends behind the temporamandibular joint
b. is separated from the submandibular gland by 
    sphenomandibular ligament
c. receives secrotomotor fibres which emerge from the 
    brain in the glossopharyngeal nerve
d. when acutely enlarged results in pain sensation being 
    transmitted along the great auricular nerve
e. has a palpable duct

3. The nerves that supply the external acoustic meatus include:

a. great auricular nerve
b. auriculotemporal nerve
c. glossopharyngeal nerve
d. vagus nerve
e. chorda tympani

4. The lateral pterygoid muscle:

a. is attached to the greater wing of the sphenoid bone
b. is attached to the angle of the mandible
c. is attached to the capsule of the temporomandibular 
d. lies medial to the mandibular nerve
e. has the inferior alveolar and lingual nerves related to 
    its lower border

5. During the operation to remove submandibular gland:

a. the skin is incised along the lower border of the 
    mandible to avoid damage to facial nerve branches
b. the facial vein is found to be superficial to the gland
c. the lingual artery has to be ligated
d. the hypoglossal nerve is seen crossing the 
    submandibular duct
e. the glossopharyngeal nerve is identified and 

6. The structures that pass through the foramen magnum include:

a. medullar oblongata
b. dura mater
c. vertebral arteries
d. vertebral veins
e. spinal arteries


7. Complete division of the oculomotor nerve at the superior orbital 
    fissure causes:
a. medial strabismus
b. mydriasis
c. impaired accommodation
d. loss of lacrimation
e. ptosis

8. The pathway for pain from an ulcer on the tip of the tongue 

a. mandibular division of fifth cranial nerve
b. cell bodies in geniculate ganglion
c. thalamus
d. internal capsule
e. precentral gyrus

9. The trigeminal ganglion:

a. is situated at a fossa on the sphenoid bone
b. is round in shape
c. receive the motor root of the trigeminal nerve
d. extends to the lateral fibrous wall of the cavernous 
e. has its posterior half bathed in cerebrospinal fluid


10. The jugular foramen:
a. lies between the occipital and temporal bones
b. is lateral to the carotid foramen
c. contains the superior ganglia of the glossopharyngeal 
    and vagus nerve
d. is medial to the orifice of emergence of the 
    hypoglossal nerve
e. transmits the inferior petrosal sinus.


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