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Answers and Explanations

1. (A) The bones of the neurocranium include thefrontal bone, paired parietal bones, paired tem-poral bones, the occipital bone, the sphenoidbone, and the ethmoid bone (Moore, p 832).

2. (C) The bones of the facial skeleton (viscerocra-

nium or splanchnocranium) include the vomer,the mandible, inferior nasal conchae, the pala-tine bones, the zygomatic bones, the maxillae,the nasal bones, and the lacrimal bones (Moore,p 832).

3. (A) When the frontal suture persists, it isknown as the metopic suture (Moore, p 834).

4. (B) The external occipital protuberance is alsoknown as the inion (Moore, p 839).

5. (A) Lambda is the point on the calvaria at thejunction of the sagittal and lambdoid sutures(Moore, p 842).

6. (C) The vertex is the superior point of the neu-rocranium in the midline (Moore, p 842).

7. (E) The foramen magnum is in the posteriorcranial fossa (Moore, p 846).

8. (A) The foramen cecum is located in the ante-rior cranial fossa (Moore, p 846).

9. (E) The anterior and posterior ethmoidal fora-mina transmit anterior and posterior ethmoidalarteries and nerves, not emissary veins (Moore,p 846).

10. (B) The superior orbital fissure transmits theophthalmic veins, ophthalmic division of the

trigeminal nerve, oculomotor nerve, trochlearnerve, abducens nerve, and sympathetic fibers(Moore, p 846).

11. (B) The foramen ovale transmits the accessorymeningeal artery. The foramen spinosum trans-

mits the middle meningeal artery. The grooveof the greater petrosal nerve transmits thepetrosal branch of the middle meningeal artery.The jugular foramen transmits the meningealbranches of the ascending pharyngeal and oc-cipital arteries. The mastoid foramen transmitsthe meningeal branch of the occipital artery(Moore, p 846).

12. (A) The foramina in the cribriform plate trans-mit axons of olfactory cells in the olfactory epi-

thelium (Moore, p 846).

13. (D) The optic canals transmit the optic nervesand the ophthalmic arteries (Moore, p 846).

14. (A) The foramen rotundum transmits the max-illary division of the trigeminal nerve (Moore,p 846).

15. (A) The foramen spinosum transmits the men-ingeal branch of the mandibular division of the

trigeminal nerve (Moore, p 846).

16. (E) The foramen magnum transmits the me-dulla and meninges, vertebral arteries, spinalroots of the accessory nerve, dural veins, and theanterior and posterior spinal arteries (Moore,p 846).

17. (E) The jugular foramen transmits the glos-sopharyngeal nerve, vagus nerve, accessory

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