Test 61 (head and neck anatomy)
1. The following are true with regard to the anatomy of the tongue:
a. the tongue develops from the first, third and fourth 
    pharyngeal arches

b. the intrinsic muscles of the tongue are derived from the 
    occipital myotomes

c. the hypoglossal nerve supplies all the muscles of the 

d. the parasympathetic secretomotor fibres to the 
    posterior third of the tongue is derived from the otic 

e. the sulcus terminalis divides the tongue into anterior 
    two-third and posterior one-third

2. The effect of severing the sympathetic nerve to one side of an adult 
    head will result in:
a. ipsilateral arteriolar vasoconstriction

b. ipsilateral decreased sweating

c. decreased accommodation

d. decreased tear production

e. decreased iris pigmentation

3. The vertebral artery:

a. is derived from the carotid artery

b. enters the skull through the foramen magnum

c. gives off the posterior inferior cerebellar artery

d. contains a plexus of preganglionic sympathetic nerve on 
    its wall

e. is anterior to the spinal accessory nerve as it enters the 

4. The following are true about the thyroid gland:

a. its vascular supply is derived solely from the external 
    carotid artery

b. it is firmly attached to the larynx

c. it contains an isthmus which overlies the fourth to sixth 
    tracheal ring

d. it is covered by pretracheal fascia

e. it increases in size during pregnancy


5. Regarding the ear:
a. the external ear is supplied by a sensory branch of the 
    facial nerve

b. the auditory canal can be straightened by pulling the 
    pinna upwards and backwards

c. the tympanic membrane is supplied by the vagus nerve

d. the auditory canal is supplied by the glossopharyngeal 

e. the malleus lies media to the tympanic membrane.

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