Scalp, Skull, Cranial Contents

Question 1

Anterior cranial fossa relations

Answer 1

Olfactory bulbs, falx cerebri, frontal poles of cerebral hemispheres

Question 2

Middle cranial fossa relations

Answer 2

Temporal lobes of cerebral hemispheres, optic nerve, chiasm, and tract, pituitary, diaphragma sella, cavernous sinus, internal carotid artery, circle of willis, cranial nerves III, IV,V, VI

Question 3

Posterior cranial fossa relations

Answer 3

Cerebellum, pons, medula, CN VI-XII, tentorium cerebelli, vertebral, artery system

Question 4

Sella turcica

Answer 4

Includes parts of sphenoid bone and the pituitary gland lies inside

Question 5

Cribiform plate (structire that passes through)

Answer 5

Olfactory nerve

Question 6

Optic foramen

Answer 6

Optic nerve, ophthalmic artery

Question 7

Superior orbital fissure

Answer 7

oculomotor, troclear, abducens, ophthalmic division of trigeminal (V1) nerves. Ophthalmic veins and sympathetic nerves

Question 8

Carotid canal

Answer 8

Internal carotid artery and postganglionic sympathetic fibers travelling as carotid plexus

Question 9

Foramen lacerum

Answer 9

internal carotid artery superior to fibrocartilage after entering skull through carotid canal

Question 10

Foramen rotundum

Answer 10

Maxillary division of trigeminal nerve (V2)

Question 11

Foramen ovale

Answer 11

Mandibular division of trigemnal (V3), motor root of CN V, accessory meningeal artery

Question 12

Foramen spinosum

Answer 12

Middle menigeal artery

Question 13

Internal acoustic meatus

Answer 13

Facial nerve, vestibulocochlear nerve, labyrinthine artery

Question 14

Jugular foramen

Answer 14

Sigmoid sinus, glossopharyngeal nerve, vagus nerve, accessory nerve

Question 15

Hypoglossal canal

Answer 15

Hypoglossal nerve

Question 16

Foramen magnum

Answer 16

Spinal cord, vertebral arteries, anterior and posterior spinal arteries, spinal origin of accessory nerve

Question 17

Vertex

Answer 17

Highest pt on skull

Question 18

Pterion

Answer 18

thinnest part of the lateral wall of the skull, overlies middle meningeal artery

Question 19

Glabella

Answer 19

Smooth eminence above the nasion and between superciliary arches