Test 102   (neuroanatomy)

Refer to the picture above for the questions below.

1. The following are true:

a. structure 1 is part of the ethmoid bone

b. falx cerebri is attached to 1

c. structure 2 is part part of the frontal bone

d. olfactory nerves pass through 2

e. nasal branch of the ophthalmic nerve passes through 2

Answera.T   b.T  c.F  d.T  e.T
1 is crista galli and 2 the cribriform fossa both are parts of the ethmoid bone.
The falx cerebri is attached to 1 and the olfactory nerve and the nasal branch of the ophthalmic nerve pass through 2.

2. The following are true:

a. the pituitary gland rests on 5

b. 4 is the anterior clinoid process

c. groove 8 is formed by internal carotid artery

d. groove 10 is formed by the internal jugular vein

e. groove 12 is formed by transverse venous sinus

Answera.T   b.T  c.F  d.F  e.T
5 is the sella turcica.
Groove 8 is formed by the middle meningeal artery.
Groove 10 is formed by the sigmoid venous sinus.

3. The following are true about 3:

a. it forms the superior border of the superior orbital 
    fissure

b. it is derived from the mesoderm

c. it calcifies in membraneous.

d. if forms the border between the anterior and middle 
    cranial fossa.

e. it may be absent in type I neurofibromatosis

Answera.T   b.T   c.T   d.T  e.T
3 is the lesser wing of sphenoid. 

4. Structures that passes through 6 include:

a. middle meningeal artery

b. mandibular branch of the trigeminal nerve

c. internal carotid artery

d. sympathetic nerve 

e. facial nerve

Answera.F  b.T  c.F  d.F  e.F
6 is foramen ovale.

5. Structures passing through 11 include:

a. vertebral artery

b. vagus nerve

c. glossopharyngeal nerve

d. hypoglossal nerve

c. internal jugular vein

Answera.F   b.T  c.T  d.F  e.F
Structure 11 is the jugular foramen and through which 
pass the glossopharyngeal (IX), vagus (X), accessory (XI) cranial nerves as well as inferior petrosal and sigmoid venous sinus.

 
 

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