Test 86    (head and neck anatomy)
1. The pituitary  gland:
a. is about 2 cm in transverse diameter

b. is not covered by meninges

c. is connected to the thalamus by the infundibulum

d. is separated from the floor of the pituitary fossa by a 
    venous sinus

e. is supplied by a single inferior and several superior
    hypophyseal arteries.

2. In the subarachnoid spaces:

a. the basilar artery lies in the interpeduncular cistern

b. communication occurs with the fourth ventricle

c. the cistern magna is continuous with the spinal 
    subarachnoid space 

d. the arachnoid granulation causes small pits at the base
    of the skull.

e. the choroid plexus are found on the surface of the brain 

3. Regarding the cranial nerves:

a. the oculomotor nerve runs in the lateral wall of the
    cavernous sinus

b. the maxillary nerve enters the orbit through the inferior
    orbital fissure

c. the facial nerve turns forwards at the genicular ganglion

d. the optic nerve is the only structure that passes through
    the optic canal

e. the left recurrent laryngeal nerve arises from the vagus 
    at the level of the subclavian artery.

4. The following anatomy of the posterior cranial fossa are true:

a. the facial nerve nucleus lies in the medullar oblongata

b. the medulla oblongata lies in the floor of the fourth 

c. the third ventricle separates the cerebellum from the 
    pons and the medulla oblongata

d. the cerebellar vermis lies below the straight sinus

e. the basilar artery is formed from the fusion of vertebral

5. The pineal gland:

a. lies between the inferior colliculus

b. is directly inferior to the splenium of the corpus 

c. receives blood supply from the posterior choroidal

d. lies within 3 mm of the midline

e. calcification is a sign of malignancy

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