Test 10
46. The diencephalon:
a. forms part of the prosencephalon 

b. is related inferiorly to the rhombencephalon 

c. consists of 3 pairs of nuclei and the pineal gland 

d. is divided into symmetrical halves by the 3rd ventricle 

e. is related on its ventral aspect to the optic chiasm 

47. The lateral geniculate nucleus:
a. is part of the auditory pathway 

b. is made up of 8 laminae of neurones 

c. contralateral retinal fibres terminate in laminae I, IV & VI 

d. ipsilateral retinal fibres terminate in laminae I, III & V 

e. ipsilateral retinal fibres terminate in laminae II, III & VI 


48. The internal capsule:
a. is formed from grey matter 

b. has projection fibres known as the corona radiata 

c. is medially related to the tail of the caudate anteriorly and the 
    thalamus posteriorly 

d. is laterally related to the lentiform nucleus 

e. consists of an anterior limb, genu, posterior limb, retrolentiform 
   and sublentiform parts 


49. The Medial Longitudinal Fasciculus:
a. arises in the vestibular nucleus in the pons 

b. ascends close to the midline in the pons and midbrain and is 
    closely related to the floor of the 4th ventricle 

c. is involved in conjugate eye movements 

d. is an ipsilateral tract 

e. when demyelinated can lead to intranuclear ophthalmoplegia 

f. when demyelinated does not allow convergence to occur 


50. The Internal carotid artery:
a. enters the skull via the carotid canal and enters the middle cranial 
    fossa by exiting the foramen lacerum      

b. runs forward in the superior part of the cavernous sinus   

c. pierces dura to run in the subdural space     

d. has a sympathetic plexus within its walls     

e. branches into anterior and posterior hypophyseal arteries that 
    supply the pituitary gland         

To test 11
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