12 Spaces of the Head and Neck

Question 1

What is the SMAS?

Answer 1

Superficial musculoaponeurotic system

Question 2

Name the 4 main facial spaces

Answer 2

Mandible and below
Cheek and lateral face
midface
pharyngeal and cervical areas

Question 3

Name 7 suprahyoid spaces

Answer 3

buccal space
masseter space
parapharyngeal space
carotid space
retropharyngeal space
prevertebral space

Question 4

Name 5 infrahyoid spaces

Answer 4

Anterior cervical space
Visceral space
Carotid space
posterior cervical space
perivertebral space

Question 5

Name a space traversing the length of the neck

Answer 5

carotid space

Question 6

What does the submandibular fascia contain?

Answer 6

submandibular gland

Question 7

What separates the sublingual and submandibular gland?

Answer 7

myohyoid muscle

Question 8

What contains the parotid gland?

Answer 8

masticator facia medially and parotid fascia laterally

Question 9

What separates the infratemporal space and the pterygomandibular space?

Answer 9

lateral pterygoid muscle

Question 10

There is a space between the temporalis muscle and masseter muscle, what is this divided into?

Answer 10

Superficial temporal space

masseteric space

Question 11

which artery passes through the infratemporal fossa?

What does it also pass through, and what is it joined by?

Answer 11

maxillary artery

parotid fascia (CN VII)

Question 12

Into which primary spaces would molar tooth infection spread?

Answer 12

Buccal space

Pterygomandibular space

Question 13

What separates the buccal space and pterygomandibular spaces?

Answer 13

mandible

Question 14

Where might infection of the buccal space spread?

Answer 14

submasseteric space

Question 15

What space is the pterygomandibular space continuous with?

Answer 15

parapharyngeal space

Question 16

Which cavity is the peritonsilar space

Answer 16

intra-orbital cavity

Question 17

What protects the pterion?

Answer 17

temporalis

Question 18

What is the longest intraosseous canal in the body?

Answer 18

Facial canal

Question 19

how might you divide the supratentorial space?

Answer 19

left supratentorial

right supratentorial

Question 20

What marks the superior and posterior border of the temporal fossa?

Answer 20

superior temporal line

Question 21

What marks the inferior border of the temporal fossa?

Answer 21

zygomatic arch

Question 22

What marks the anterior border of the temporal fossa?

Answer 22

frontal process of zygoma and zygomatic process of frontal bone

Question 23

What marks the medial border of the temporal fossa?

Answer 23

frontal bone
parietal bone
temporal bone
sphenoid bone

Question 24

What marks the lateral border of the temporal fossa?

Answer 24

temporal fascia

Question 25

What muscles are within the temporal fossa?

Answer 25

temporalis

Question 26

What blood vessel is in the temporal fossa?

Answer 26

superficial temporal artery

Question 27

Which nerves are in the temporal fossa?

Answer 27

``` V3 mandibular nerve anterior and posterior branches of deep temporal nerve auriculotemporal nerve zygomatico temporal nerve temporal branches of the facial nerve ```

Question 28

What marks the superior border of the infratemporal fossa?

Answer 28

infratemporal surface of greater wing of sphenoid

Question 29

What marks the inferior border of the infratemporal fossa?

Answer 29

alveolar border of the maxilla

Question 30

What marks the medial border of the infratemporal fossa?

Answer 30

lateral pterygoid plate

Question 31

What marks the lateral border of the infratemporal fossa?

Answer 31

there is none lol tricked you xxx

Question 32

Name 4 nerves in the infratemporal fossa

Answer 32

V3 Inferior alveolar nerve buccal nerve lingual nerve

Question 33

What is the first (main) branch of the maxillary artery?

Answer 33

middle meningeal artery

Question 34

How does the middle meningeal artery enter the cranium?

Answer 34

foramen spinosum

Question 35

What are the 2 main deep arteries of the infratemporal fossa?

Answer 35

``` maxillary middle meningeal (not anterior branch) ```

Question 36

What is the main superficial artery of the infratemporal fossa?

Answer 36

superficial temoral artery

Question 37

What are the main veins of the infratemporal fossa?

Answer 37

maxillary vein middle meningeal vein pterygoid venous plexus

Question 38

Where might an infection of the pterygoid venouos plexus spread to?

Answer 38

cavernous sinus

Question 39

Which ganglion is near the infratemopral region?

Answer 39

Otic ganglion

Question 40

Which nerves are affected by a mandibular nerve block?

Answer 40

inferior alveolar lingual buccal auriculotemporal

Question 41

Roughly where is the pterygopalatine fossa?

Answer 41

lateral to skull posterior to the maxilla

Question 42

What marks the anterior boundary of the pterygopalatine fossa?

Answer 42

posterior surface of maxilla

Question 43

What marks the posterior boundary of the pterygopalatine fossa?

Answer 43

pterygoid process

Question 44

What marks the medial boundary of the pterygopalatine fossa?

Answer 44

perpendicular plate of the palatine bone

Question 45

What marks the lateral boundary of the pterygopalatine fossa?

Answer 45

pterygomaxillary fissure

Question 46

How does the pterygopalatine fossa communicate with the infratemporal fossa?

Answer 46

pterygomaxillary fissure

Question 47

How does the pterygopalatine fossa communicate with the middle cranial fossa?

Answer 47

via foramen rotundum

Question 48

How does the pterygopalatine fossa communicate witht eh nasal cavity?

Answer 48

sphenopalatine foramen

Question 49

How does the pterygopalatine fossa communicate with the orbital cavity?

Answer 49

inferiro orbital fissure

Question 50

How does the pterygopalatine fossa communicate witht eh palate?

Answer 50

greater palatine canal

Question 51

How does the pterygopalatine fossa communicate with the nasopharynx?

Answer 51

pharyngeal and pterygoid canals