Lecture 23

Question 1

Components of the skull

Answer 1

Neural (brain) and visceral (face)

Question 2

Skull minus mandible

Answer 2

Cranium

Question 3

Formed by union of maxillary bones and zygomatic bones

Answer 3

Viscerocranium

Question 4

Formed by bones making the calvaria

Answer 4

Neurocranium

Question 5

Skull cap

Answer 5

Calavaria

Question 6

Bones in viscerocranium

Answer 6

Nasal (2), lacrimal (2), zygomatic (2), maxillae, inferior nasal conchae (2), palatine

Question 7

Bones in neurocranium

Answer 7

frontal, parietal (2), ethmoid, sphenoid, temporal (2), occipital)

Question 8

Landmark for dividing line of viscero/neurocranium

Answer 8

external acoustic (auditory) meatus

Question 9

Components of calavaria

Answer 9

Outer table, dipole, inner table

Question 10

Sutures of the skull

Answer 10

coronal, sagittal, lambdoidal, meteoric, squamosal, wormian bones

Question 11

4 diploic veins

Answer 11

frontal veins, anterior temporal veins, posterior temporal veins, occipital veins

Question 12

Veins that pierce the skill and connect the veins of the scalp with diploic veins and internal venous sinuses

Answer 12

Emissary veins

Question 13

Veins that run with diploic (cancellous) bone

Answer 13

diploic veins

Question 14

Function of diploic veins

Answer 14

drain neurocranium and scalp; drain into dural venous sinuses

Question 15

Orbit foramina

Answer 15

Optic canal
Superior orbital fissure
Inferior orbital fissure
Infraorbital groove

Question 16

Borders of orbit

Answer 16

Ms. Elfz
(maxillary, sphenoid, ethmoid, lacrimal, femoral, zygomatic)
(floor, apex, medial side, roof, lateral side)

Question 17

anterior branch of middle meningeal artery passes

Answer 17

pterion

Question 18

bleeding from middle meningeal artery

Answer 18

epidural hematoma

Question 19

body of sphenoid contains:

Answer 19

hypophyseal fossa (sella turcia –> pituitary gland), tubercular sellae, dorsum sellae, posterior crinoid process

Question 20

attachment for pterygoid muscles that move the mandible

Answer 20

medial and lateral pterygoid plates

Question 21

slope of basilar part of occipital bone

Answer 21

clivus

Question 22

occipital condyles articulate with

Answer 22

articular facets of C1

Question 23

temporal bone - inner ear

Answer 23

petrous portion

Question 24

3 cranial fossa

Answer 24

anterior cranial fossa, middle cranial fossa, posterior cranial fossa

Question 25

contents of posterior cranial fossa

Answer 25

cerebellum and brainstem

Question 26

contents of middle cranial fossa

Answer 26

temporal lobes of cerebral cortex

Question 27

contents of anterior cranial fossa

Answer 27

frontal lobes of cerebral cortex

Question 28

site for a dental block

Answer 28

mandibular foramen

Question 29

scalp composition

Answer 29

Skin
Connective tissue (dense)
Aponeurotic layer
Loose connective tissue
Periosteum

Question 30

borders of ant. cranial fossa

Answer 30

LOC (loss of consciousness)

lesser wing of scaphoid, orbital plates, cribriform plates + crista galli

Question 31

borders of middle cranial fossa

Answer 31

GPS (when you’re in the MIDDLE of nowhere)

greater wing of scaphoid, parietal bone, squamous + petrous temporal bone

Question 32

borders of post. cranial fossa

Answer 32

(Oh please, patrick!)

occipital bone, petrous part of temporal, parietal bone