scalp and cranial cavity

Question 1

Five layers of tissue of the scalp

Answer 1

S- skin
C- Connective tissue
A- Epicranial aponeurosis -strong membranous tendon connecting the anteriorly Placed frontalis muscle and the posterior placed occipitalis
L- Loose connective tissue - allows the outer three layers to move freely over the skull
P- Periosteum of cranium

Question 2

Walls of cranial cavity

Answer 2

consist of inner and outer tables of compact bone that are separated by spongy bone called diploë

Cranial meninges

Question 3

cranial meninges

Answer 3

Three membranes that surround the brain, and a continuous with the meninges of the spinal cord

dura Mater fused to periosteum. Therefore it is considered to have two parts.

Periosteal Dura- continuous with periosteum of the inner surface of the skull
Meningeal Dura- continuous with dura of spinal cord

Question 4

Dura Mater

Answer 4

Fused to the periosteum

Periosteal Dura
Meningeal Dura

Question 5

arachnoid Mater

Answer 5

Delicate membrane, that lines the inner surface of a Dura

Arachnoid trabeculae are fine extensions that span across the subdural space attached to the pia mater

Question 6

Pia mater

Answer 6

Vascular, delicate membrane that attaches to the brain

Question 7

what creates channels?

Answer 7

The separation of the meningeal dura from the periosteal Dura

these channels are lined with an endothelium, and they receive veins that during the brain and the meninges

in effect venous channels, responsible for draining the contents of the cranial cavity

Question 8

dural folds

Answer 8

falx cerebri
falx cerebelli
tentorium cerebelli
diaphragma sellae

Question 9

dural venous sinuses

Answer 9

superior sagittal sinus
inferior sagittal sinus
transverse sinus
occipital sinus
cavernous sinuses
superior petrosal sinus
inferior petrosal sinus
sigmoid sinus

Question 10

neural cranium bones

Answer 10

occipital
sphenoid
Frontal
Ethmoidal
Parietal
Temporal

Question 11

viscerocranium bones

Answer 11

palatine
Zygomatic
Ethmoid
Nasal
Lacrimal
Vomer
Inferior nasal conche
Maxillae
Mandible

Question 12

Anterior cranial fossa

Answer 12

foramen cecum
cribriform foramina in cribriform plate
anterior and posterior ethmoidal foramina

Question 13

Middle cranial fossa

Answer 13

optic canals
Superior orbital fissure
Foramen rotundum
Foramen ovale
foramen spinosum
Foramen lacerum
Groove or hiatus of greater petrosal nerve

Question 14

Optic canals

Answer 14

optic nerve
Ophthalmic arteries

Question 15

Superior orbital fissure

Answer 15

ophthalmic veins
Ophthalmic nerve V1
Cranial nerves III, IV, VI, and sympathetic fibers

Question 16

foramen ovale

Answer 16

Mandibular nerve V3
Accessory meningeal artery

Question 17

foramen rotundum

Answer 17

maxillary nerve CN V2

Question 18

foramen spinosum

Answer 18

middle meningeal artery and vein
Meningeal branch of cranial nerve V3

Question 19

foramen lacerum

Answer 19

internal carotid artery
Accompanying sympathetic, and Venous plexuses

Question 20

groove hiatus of greater petrosal nerve

Answer 20

Greater petrosal, nerve and petrosal branch of middle meningeal artery

Question 21

Posterior cranial fossa

Answer 21

Foramen magnum
Jugular foramen
Hypoglossal canal
Condylar canal
Mastoid foramen

Question 22

Foramen magnum

Answer 22

medulla and meninges
Vertebral arteries
CN XI
Dural veins
Anterior and posterior spinal arteries

Question 23

jugular foramen

Answer 23

CN IX, X, XI
superior bulb of internal jugular vein
Inferior petrosal and Sigmoid sinuses
meningeal branches of ascending pharyngeal and occipital arteries

Question 24

Hypoglossal canal

Answer 24

Hypoglossal nerve
CN XII

Question 25

condylar canal

Answer 25

emissory vein that passes from sigmoid sinus to vertebral veins in neck

Question 26

mastoid foramen

Answer 26

Mastoid emissary vein from sigmoid, sinus and meningeal branch of occipital artery

Question 27

Distribution of the trigeminal nerve

Answer 27

ophthalmic nerve- supraorbital fissure
Maxillary nerve - foramen rotundum
Mandibular nerve - mental foramen

Question 28

distribution of the facial nerve

Answer 28

Temporal
Zygomatic
buccal
Marginal mandibular
Cervical

Five branches

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