G3 Skull, Face, Scalp

Question 1

Cranial bones that protect brain

Answer 1

Neurocranium

Question 2

Facial bones that protect airway

Answer 2

Viscerocranium

Question 3

Fracture of Pterion can cause hemorrhaging of _____.

Answer 3

Middle meningeal artery

Question 4

Bregma correlates embryologically with ____

Answer 4

Anterior fontanel

Question 5

Lambda correlates embryologically with ____

Answer 5

Posterior fontanel

Question 6

Boundaries of Orbit:

Answer 6

Roof- Frontal b.
Lat. wall- Zygomatic b.
Floor/medial wall- Maxilla b.
Medial wall- Lacrimal and ethmoid bb.
Posterior wall- Sphenoid b.

Question 7

Boundaries of Nasal Cavity:

Answer 7

Roof- Nasal bones, Frontal sinus, Ethmoid, Sphenoid sinus
Floor/lat wall- Maxillary b.
Floor- Palatine horizontal plate
Medial- Vomer, perpendicular plate of ethmoid, nasal septum

Question 8

The superior and middle nasal conchae are part of the ____ bone, while the inferior nasal conchae are ____ bones.

Answer 8

Ethmoid

Separate

Question 9

Anterior cranial fossa is the most ____ in the cranial vault.

Posterior cranial fossa is the most _____ in the cranial vault.

Answer 9

Superior

Inferior

Question 10

Make skull bones lighter, add resonance to voice, lined by mucosal membranes, continuous with nasal cavity.

Answer 10

Paranasal Sinuses

Question 11

Layers of Scalp:

Answer 11

Skin
Connective Tissue (dense)
Aponeurotic layer
Loose Connective Tissue
Pericranium

Question 12

Superficial wounds into the ___ layer of the scalp tend to bleed profusely (highly vascularized)

Deep wounds into the ___ layer gape widely (muscles pull this open)

Answer 12

C

A

Question 13

Danger space of scalp. Infections spread easily in this layer (Travel into cranial cavity through emissary veins to meninges; fluid moves anteriorly into eyelids and root of nose)

Answer 13

Loose Areolar Tissue

Question 14

This muscle moves the scalp back and forward

Answer 14

Occipitofrontalis m. (Occipitalis m., Galea Aponeurotica, Frontalis m.)

Question 15

Protract, elevate, and retract ears

Answer 15

3 Auricularis mm.

Question 16

Raises eybrow (surprise)

Answer 16

Frontalis m.

Question 17

Draws eyebrow in (frowning)

Answer 17

Curragator Supercilii m.

Question 18

Closes eye (winking)

Answer 18

Orbicularis Oculi m.

Question 19

Wrinkles bridge of nose

Answer 19

Procerus m.

Question 20

Compresses and dilates nostril

Answer 20

Nasalis m.

Question 21

Levator Labii Superioris Alaeque Nasi m. Function?

Answer 21

Dilates nostril

Question 22

Closes mouth

Answer 22

Orbicularis Oris m.

Question 23

Elevates upper lip

Answer 23

Levator labii superioris m.

Question 24

Draws mouth up

Answer 24

Zygomaticus major/minor

Question 25

Depresses angle of mouth

Answer 25

Depressor anguli oris

Question 26

Depresses lower lip

Answer 26

Depressor labii inferioris

Question 27

Retracts corner of mouth

Answer 27

Risorius m.

Question 28

Protrudes lower lip

Answer 28

Mentalis m.

Question 29

Compresses cheek and assists with mastication (deep muscle of mouth)

Answer 29

Buccinator m.

Question 30

Elevates angle of mouth (deep muscle of mouth)

Answer 30

Levator Anguli Oris m.

Question 31

Depresses lower lip (deep muscle of mouth)

Answer 31

Depressor Labii inferioris m.

Question 32

Temporalis m. functions:

Answer 32

Elevates and retracts mandible

Question 33

Masseter functions:

Answer 33

Elevates and clenches mandible

Question 34

Med. Pterygoid functions:

Answer 34

Elevates, protracts, rotates mandible

Question 35

Lat. Pterygoid functions:

Answer 35

Protrudes, rotates, depresses mandible

Question 36

Provides sensory to face and scalp

Answer 36

Trigeminal n. (CN V)

Question 37

Provides sensory to back of head, ears, jaw

Answer 37

Cervical n.

Question 38

Provides motor to mm of facial expression

Answer 38

Facial n. (CN VII)

Question 39

Provides motor to mm of mastication

Answer 39

Mandibular n. (CN V3)

Question 40

The ____ duct transmits saliva from the parotid gland. It crosses masseter below zygomatic arch, turns ___ degrees to pierce buccinator m., opens into oral cavity opposite ____ (tooth) marked by elevated parotid papilla

Answer 40

Parotid/Stensen's 90 2nd molar

Question 41

Calculus formation is associated with chronic ____.

Answer 41

Parotiditis

Question 42

Gustatory sweating (related to parotid gland) is known as

Answer 42

Frey's Syndrome

Question 43

This nerve is in danger during parotidectomy because it passes thru the parotid gland

Answer 43

Facial n. (CN VII)

Question 44

CN V1 branches:

Answer 44

1. Supra-orbital 2. Supratrochlear 3. Lacrimal 4. Infratrochlear 5. External Nasal

Question 45

CN V2 branches:

Answer 45

1. Infra-orbital 2. Zygomaticofacial 3. Zygomaticotemporal

Question 46

CN V3 sensory branches:

Answer 46

1. Inferior Alveolar and Lingal nn. 2. Buccal n. 3. Auriculotemporal n.

Question 47

Opening near parotid gland from internal to surface, most commonly after surgical procedure (duct ligation)

Answer 47

Salivary Fistula

Question 48

85-90% of these mixed tumors involve parotid

Answer 48

Neoplasms

Question 49

Facial n. (CN VII) branches:

Answer 49

1. Posterior auricular n. 2. Nerves to posterior belly of digastric/stylohyoid mm. 3. Temporal Branch 4. Zygomatic branches 5. Buccal branches 6. Marginal Mandibular branches 7. Cervical branches *People Go To Zanzibar By Motor Car

Question 50

Injury to CN VII produces m. Paralysis on affected side. CN VII may be inflamed at ____ foramen. Edema and compression of nerve in ____.

Answer 50

Stylomastoid Foramen Facial canal

Question 51

This fat covers up buccinator muscle located medially. Protects parotid duct and CN VII (buccal br.).

Answer 51

Buccal Fat Pad

Question 52

CN ___ provides motor to buccinator. CN ___ provides sensory to buccal mucosa and skin of cheek

Answer 52

VII V3

Question 53

Supply blood to upper cheek region (parotid gland/duct, masseter m.)

Answer 53

Transverse Facial artery/vein

Question 54

Lymphatic drainage of head and neck is ___lateral and drains in the medial to lateral direction.

Answer 54

Ipsi