Exam 6. Chapter 26

Question 1

Bones of skull

Answer 1

Surrounds brain and protects it from injury.
Forms facial features.
Participates in the growth process of jaws.

Question 2

Malocclusion

Answer 2

Improper relationship of the teeth and jaws. (Max. To mand. Teeth)

Question 3

How many bones in the skull

Answer 3

22

Question 4

Bones of skull decided in

Answer 4

2 groups:

• neurocranium
• viscerocranium

Question 5

Neurocranium

Answer 5

Bones surrounding the brain.

• frontal (1)
• sphenoid (1)
• ethmoid (1)
• occipital (1)
• temporal (2)
• parietal (2)

Question 6

Viscerocranium

Answer 6

Bones of the face:

• mandible (1)
• vomer (1)
• nasal bones (2)
• lacrimal (2)
• zygomatic (2)
• inferior nasal concha (2)
• palative (2)
• maxilla (2)

Question 7

Suture

Answer 7

Joining together of 2 or more bones

Question 8

Foramen

Answer 8

Short tubelike opening through bone

Question 9

Canal

Answer 9

Long tubelike opening through bone

Question 10

Orbit

Answer 10

Eye cavity

Question 11

Tim of the orbit comes from

Answer 11

Frontal, zygomatic and maximally bones

Question 12

Most difficult view of skull for student

Answer 12

Inferior view

Question 13

Hard palate formed by

Answer 13

Palatal process of maxilla

Palatal process of palatine bones

Question 14

Sphenooccipital synchondrosis

Answer 14

Major area of endochondral bone formation- develops facial profiles and malocclusions

Question 15

Supraorbital notch (foramen)

Answer 15

Upper rim of orbit. Nerve and blood supply to forehead

Question 16

Coronal suture

Answer 16

Formed between frontal and parietal bones

Question 17

Infraorbital foramen

Answer 17

Arteries and nerves to upper lip lower eyelid and side of nose

Question 18

Canine eminence

Answer 18

Ridge of bone over max. Canines

Question 19

Canine fossae

Answer 19

Depression in bone above canine eminence

Question 20

Alveolar process

Answer 20

Forms in the pockets that the teeth sit in

Question 21

Mental foramen

Answer 21

Mandible-mental nerve and vessels pass to chin, lower lip and labial gingiva of anterior mandible

Question 22

Optic foramen

Answer 22

Opening in orbit where optic nerves enters in

Question 23

Lambdoid suture

Answer 23

Formed from Parietal and occipital bones

Question 24

Squamosal suture

Answer 24

Squamous portion of temporal and parietal bones. - overlapping suture

Question 25

Mastoid process

Answer 25

Projection of temporal behind external auditory meatus -insertion point for sternocleidomastoid muscle (SCM)

Question 26

Zygomatic arch

Answer 26

Projects the temporal and joins with zygoma

Question 27

Glenoid fossa

Answer 27

Part of temporal bone where consume articulates (part of TMJ)

Question 28

Styloid process

Answer 28

Projection behind ear- attachment for muscle and ligaments.

Question 29

Foramen ovale

Answer 29

Branch of V3 (mandible)

Question 30

Foramen rotundum

Answer 30

Branch of V2 (maxilla)

Question 31

Foramen spinosum

Answer 31

Middle meningeal artery-blood supply to the covering of the brain.

Question 32

Stylomastoid foramen

Answer 32

VII exits to muscles of facial expressions

Question 33

Carotid canal

Answer 33

Opening for internal carotid artery

Question 34

Crista galli

Answer 34

Attachment for the layers covering the brain

Question 35

Cribeiform plate

Answer 35

Passage for olfactory nerves (smell)

Question 36

Anterior cranial fossa

Answer 36

Houses frontal lobe of the brain

Question 37

Hypophyseal fossa

Answer 37

Houses pituitary gland

Question 38

Foramen magnum

Answer 38

Large opening toward posterior of skull on inferior view (spinal cord)

Question 39

Middle cranial fossa

Answer 39

Houses temporal lobe of brain

Question 40

Posterior cranial fossa

Answer 40

Houses brain stem and cerebellum

Question 41

Sagital suture

Answer 41

Formed between parietal bones (midline of skull)

Question 42

Hamulus

Answer 42

Movements of anterior soft palate

Question 43

Pterygopalatine fossa

Answer 43

Major nerve/blood vessels to oral/nasal cavity branch -between maxilla and pterygoid process.

Question 44

Medial pterygoid plate

Answer 44

Medial ptergoid muscle arises

Question 45

Lateral pterygoid plate

Answer 45

Lateral ptergoid muscle arises

Question 46

Maxillary processes

Answer 46

A) frontal B) zygomatic C) alveolar process D) horizontal palatine

Question 47

Maxillary sinuses

Answer 47

Largest of paranasal sinuses -infection affects teeth and vice versa.

Question 48

Anterior nasal spine

Answer 48

Radiographic landmark for cephalometric films (ortho)

Question 49

Maxillary tuberosity

Answer 49

Bulge of bone posterior to maxillary 3rd molars. -much of growth of maxilla takes place.

Question 50

Hiatus

Answer 50

Opening into nasal cavity from maxillary sinus

Question 51

Lacrimal groove

Answer 51

From inner corner of eye to maxillary sinus- where tears flow into the nose

Question 52

Mandible parts

Answer 52

- alveolar process - body - ramus - angle of the mandible - dividing line between body/ ramus

Question 53

Mental protuberance

Answer 53

Tip of the chin area

Question 54

Ramus parts

Answer 54

- condyle - condylar neck - Coronoid notch- depression in the ramus - coronoid process - external oblique line (ridge)

Question 55

Mandibular foramen

Answer 55

Lingual surface- nerve/blood supply enters

Question 56

Mylohyoid line

Answer 56

Lingual surface- attachment for mylohyoid muscle

Question 57

Sublingual fossae

Answer 57

Depression above mylohyoid line -sublingual gland

Question 58

Retromolar triangle

Answer 58

Area immediately behind 3rd molars

Question 59

Genial tubercles

Answer 59

Midline lingual- muscle attachment (bullseye on x-ray)

Question 60

Lingula

Answer 60

Projection of bone partially covering mandibular foramen- attachment for sphenomandibular ligament

Question 61

Submandibular fossae

Answer 61

Depression below mylohyoid line - submandibular gland