UNIT 14 (FOCUS UNIT) - not finished

go do the flashcards of the Viscerocranium practical

done

what bones form the Viscerocranium (12)

• ethmoid (except the cribriform plate)

• sphenoid

• temporal

• maxilla

• palatine

• vomer

• nasal

• lacrimal

• mandible

• zygomatic

• inferior nasal concha

• hyoid

BONES OF THE VISCEROCRANIUM COMING UPPPP

done

MAXILLA

what does it form

majority of the face skeleton and upper jaw

MAXILLA

which paranasal sinus is found in the maxilla

maxillary paranasal sinus

MAXILLA

is the maxilla single or paired

paired (maxillae)

MAXILLA

into how many parts is the maxilla divided

5

MAXILLA

what are the 5 parts of the maxilla

• body

• frontal process

• zygomatic process

• palatine process

• alveolar process

MAXILLA

which bones does the maxilla articulate with

• opposite maxilla

• frontal

• sphenoid

• nasal

• vomer

• ethmoid

• inferior nasal concha

• palatine

• lacrimal

• zygomatic

MAXILLA

parts - BODY

what is the largest part of the maxilla

body

MAXILLA

parts - BODY

what shape is the body of the maxilla

pyramid shaped

MAXILLA

parts - BODY

which sinus is found in the body of the maxilla

maxillary paranasal sinus

MAXILLA

parts - BODY

what structures does the body give rise to

• orbit

• nasal cavity

• infratemporal fossa

• face

MAXILLA

parts - FRONTAL PROCESS

in which direction does the frontal process extend

superiorly in order to articulate

MAXILLA

parts - FRONTAL PROCESS

which bones does the frontal process articulate with

• nasal

• frontal

• ethmoid

• lacrimal

MAXILLA

parts - ZYGOMATIC PROCESS

in which direction does the zygomatic extend in order to articulate

laterally

MAXILLA

parts - ZYGOMATIC PROCESS

which structures does it articulate with

maxillary process of the zygomatic bone

MAXILLA

parts - PALATINE PROCESS

in which direction does it extend

medially

MAXILLA

parts - PALATINE PROCESS

what does the palatine process form

part of the hard palate

MAXILLA

parts - PALATINE PROCESS

which structurers does it articulate with

opposite palatine process

and

horizontal palate of the palatine bone

MAXILLA

parts - ALVEOLAR PROCESS

what does it support

maxillary teeth

MAXILLA

parts - ALVEOLAR PROCESS

in which direction does it extend

inferiorly

MAXILLA

parts - ALVEOLAR PROCESS

how many primary teeth does each maxilla contain

5 primary teeth

MAXILLA

parts - ALVEOLAR PROCESS

how many permeant teeth does each maxilla contain

8 permanent teeth

MAXILLA

parts - ALVEOLAR PROCESS

what happens to the alveolar bone when a tooth is lost

the alveolar bone is resorbed

MANDIBLE

What does it form

the lower jaw

MANDIBLE

is it a paired or single bone

single

MANDIBLE

which muscles attach to the mandible

all muscles of mastication

MANDIBLE

which structure does the mandible articulate with?

Glenoid fossa of the temporal bone

MANDIBLE

int how many parts is it divided

5 parts

MANDIBLE

what are the 5 parts of the mandible

• body

• ramus of the mandible

• coronoid process

• condylar process

• alveolar process

MANDIBLE - body

where is the mental foramen located

on the anterior part of the lateral surface

MANDIBLE - body

where is the external oblique line observed

on the lateral side of the mandible

MANDIBLE - body

where does the mylohyoid line located

on the medial side of the body of the mandible

MANDIBLE - body

what does the mylohyoid line divide

a sublingual fossa from a submandibular fossa

MANDIBLE - body

what attaches to the posterior border of the mylohyoid line

pterygomandibular raphe

MANDIBLE - body

where are superior and inferior genial spines (genial tubercles) located

at the midline on the medial side

MANDIBLE - body

where is the digastric fossa located

at the midline on the medial side

MANDIBLE - body

what small opening is found by the genial tubercles

lingual foramen (or foramina)

MANDIBLE - ramus of the mandible

where does the ramus meet the body of the mandible

at the angle on each side

MANDIBLE - ramus of the mandible

which muscle attaches to the lateral side of the ramus

Masseter muscle

MANDIBLE - ramus of the mandible

which structures attach to the medial aspect of the ramus

• medial pterygoid muscle

• sphenomandibular ligament

MANDIBLE - ramus of the mandible

where is the mandibular foramen located

on the medial aspect

MANDIBLE - ramus of the mandible

which two processes are found on the superior part of the ramus

• coronoid process (anteriorly)

• condylar process (posteriorly)

MANDIBLE - ramus of the mandible

what separates the coronoid and condylar processes

mandibular notch

MANDIBLE - coronoid process

what is the coronoid process

the anterior, most superior extension of each ramus

MANDIBLE - coronoid process

which muscle attached to the coronoid process

temporalis muscle

MANDIBLE - condylar process

which structure does the condylar process articulate with

temporal bone

MANDIBLE - condylar process

what joint is formed by the condylar process and temporal bone

temporomandibular joint (TMJ)

MANDIBLE - condylar process

what forms the condyle superiorly

the neck

MANDIBLE - condylar process

which muscle attached to the pterygoid fovea

lateral pterygoid muscle

MANDIBLE - condylar process

the lateral pterygoid muscle attached to the pterygoid fovea which is found where

on the neck

ALVEOLAR PROCESS

In which direction does the alveolar process extend

superiorly from the body

ALVEOLAR PROCESS

what creates the alveolar process

a thick buccal plate and a thin lingual plate of bone

ALVEOLAR PROCESS

what does is support

mandibular teeth

ALVEOLAR PROCESS

how many primary teeth does each side contain

5

ALVEOLAR PROCESS

how many permanent teeth does each side contain

8

ALVEOLAR PROCESS

what happens to the alveolar bone when a tooth in lost

is is resorbed

LACRIMAL BONE

how is the lacrimal bone described

small, rectangular, very thin and fragile

LACRIMAL BONE

is the lacrimal bone single or paired

paired

LACRIMAL BONE

what does the lacrimal bone form

a small portion of the medial wall of the orbit

LACRIMAL BONE

which bone does the lacrimal bone articulate with

• frontal process of the maxilla

• orbital plate of ethmoid

• frontal

• inferior nasal concha

LACRIMAL BONE

where is the lacrimal fossa found

in the region that articulates with the frontal process of the maxilla

LACRIMAL BONE

what structure is located in the lacrimal fossa

lacrimal sac

LACRIMAL BONE

what does the inferior part of the lacrimal bone form

a small portion of the lateral wall of the nasal cavity

NASAL BONE

IS this a single or paired bone

paired bone

NASAL BONE

what do the nasal bones form

nose bridge

NASAL BONE

what does the inferior portion of the nasal bone form

superior margin of the nasal aperture

NASAL BONE

which bones does the nasal bone articulate with

opposite nasal bone

nasal portion of the frontal

frontal process of the maxilla

perpendicular plate of the ethmoid bone

NASAL BONE

what attaches to the inferior portion of the nasal bone

lateral nasal and septal cartilages

ZYGOMATIC BONE (ZYGOMA)

what does the zygomatic bone form

the largest portion of the cheek skeleton

ZYGOMATIC BONE (ZYGOMA)

which muscle attaches to the zygomatic bone

masseter muscle

ZYGOMATIC BONE (ZYGOMA)

is the zygomatic bone single or paired

paired bone

ZYGOMATIC BONE (ZYGOMA)

what 3 foramina are found in the zygomatic bone

• zygomatico-orbital foramen

• zygomaticofacial foramen

• zygomaticotemporal foramen

ZYGOMATIC BONE (ZYGOMA)

into how many parts is the zygomatic bone divided

3

ZYGOMATIC BONE (ZYGOMA)

what are the 3 parts

• frontal process

• temporal process

• maxillary process

ZYGOMATIC BONE (ZYGOMA)

what bone does the frontal process of the zygomatic bone articulate with

frontal bone

ZYGOMATIC BONE (ZYGOMA)

what does the frontal process help from

orbit

ZYGOMATIC BONE (ZYGOMA)

which structure does temporal process articulate with

zygomatic process of the temporal bone

ZYGOMATIC BONE (ZYGOMA)

what is formed by the temporal process and the zygomatic process of the temporal bone

zygomatic arch

ZYGOMATIC BONE (ZYGOMA)

which structure does the maxillary process articulate with

zygomatic process of the maxilla

ZYGOMATIC BONE (ZYGOMA)

what does the maxillary process help form

orbit

VOMER

is it a single or paired bone

single

VOMER

what is the shape of the vomer

Plough-shaped

VOMER

what does the vomer form

posterior and inferior part of the nasal septum

VOMER

which bones does the vomer articulate with

• perpendicular plate of the ethmoid

• maxilla

• palatine

• sphenoid bone

VOMER

which border of the Vomer does NOT articulate with another bone

posterior border

INFERIOR NASAL CONCHA

is it a paired or single bone

paired

INFERIOR NASAL CONCHA

how is the inferior nasal concha described as

a curved bone that forms part of the lateral wall of the nasal cavity

INFERIOR NASAL CONCHA

which bones does the inferior nasal concha articulate with

• maxilla

• perpendicular plate of palatine

• lacrimal

• ethmoid

PALATINE BONE

is this a single or paired bone

paired

PALATINE BONE

what is the shape of the palatine bone

L-shaped

PALATINE BONE

what does the palatine bone form

• part of the nasal cavity

• hard palate

PALATINE BONE

into how many parts is the palatine bone divided

3

PALATINE BONE

what are the tree parts of the palatine bone

perpendicular plate

horizontal plate

pyramidal process

PALATINE BONE - perpendicular plate

what shape is the perpendicular plate

vertical rectangle

PALATINE BONE - perpendicular plate

what articulates with the notch on the superior border of the perpendicular plate

sphenoid bone

PALATINE BONE - perpendicular plate

what is formed by the articulation between the notch and the sphenoid bone

sphenopalatine foramen

PALATINE BONE - perpendicular plate

what small process forms part of the orbit

orbital process

PALATINE BONE - perpendicular plate

what does the perpendicular plate form

• part of the medial wall of the pterygopalatine fossa

• part of the lateral wall of the nasal cavity