Skull

Front 1

What are the two components of the skull?

Back 1

Facial skeleton (viscerocranium)

Cranial Vault (neurocranium)

Front 2

How many bones are part of the facial skeleton (viscerocranium)? List them

Back 2

14 facial bones: Zygomatic (2), Nasal (2), Lacrimal (2), Inferior Nasal Conchae (2), Maxilla (2), Mandible, Vomer, and Palatine (2)

Front 3

How many bones are part of the cranial vault (neurocranium)? List them

Back 3

8 Cranial Bones: Facial, Parietal (2), Temporal (2), Occipital, Sphenoid and Ethmoid

Front 4

What two bones are not visible from a frontal view of the skull, where can these be found?

Back 4

The Palatine (found posterior to the maxilla, forming the posterior 1/3 of the roof of the mouth) and Occipital (found at the most posterior portion of the skull) bones

Front 5

How many teeth are contained within each jaw?

Back 5

sixteen

Front 6

Is the mandible directly attached to the skull?

Back 6

No, it articulates with it at the temporomandibular joint and is moved by the temporalis muscle

Front 7

What three foramina are visible from a frontal view of the skull?

Back 7

Supraorbital Foramen (notch), Infraorbital Foramen, and the Mental Foramen

Front 8

What is the alveolar process?

Back 8

It is the region found in both the mandible and maxilla that contain the teeth

Front 9

What structures form the zygomatic arch?

Back 9

The temporal process of the zygomatic bone and the zygomatic process of the temporal bone

Front 10

What portion of the sphenoid bone is visible from the lateral view?

Back 10

The greater wing of the sphenoid bone

Front 11

What are the two general regions of the temporal bone?

Back 11

Squamous (flat portion, also found more superiorly) and Petrous (rougher portion, found more inferiorly)

Front 12

What is the region known as where the temporal, sphenoid, parietal and frontal bones all meet?

Back 12

Pterion

Front 13

What are two prominent processes on the temporal bone? What part of the temporal bone do they extend from?

Back 13

Styloid and mastoid processes, which project off from the Petrous Temporal Bone

Front 14

What regions comprise the temporal fossa?

Back 14

It is made up of the lower portion of the parietal bone, greater wing of the sphenoid and squamous temporal bone

Front 15

Where would one find the coronal suture?

Back 15

At the junction of the frontal and parietal bones

Front 16

Where would one find the lambdoid suture?

Back 16

At the junction of the parietal and occipital bones

Front 17

Where would one find the sagittal suture?

Back 17

Joining the parietal bones

Front 18

What is an important site of muscle attachment on the occipital bone?

Back 18

The superior nuchal line

Front 19

What is an important articular surface that connects the skull to the spine? What do they articulate with?

Back 19

The occipital condyles are the responsible structures which articulate with the Atlas at the Atlanto-Occipital Joint

Front 20

What is located in between the occipital condyles?

Back 20

The foramen magnum which enables passage of the spinal cord

Front 21

What structure separates the nasal conchae?

Back 21

The Vomer

Front 22

What bones comprise the hard palate?

Back 22

It is comprised of the palatine process of the Maxilla for the anterior 2/3rds and the palatine bones for the posterior 1/3rd

Front 23

What are the most prominent foramina in the Sphenoid bone?

Back 23

Foramen Rotundum, Foramen Ovale, Foramen Spinosum (in order from anterior to posterior)

Front 24

What important foramen is visible on the base of the skull at the confluency of three bones?

Back 24

The Foramen Lacerum, which is bordered by the sphenoid, occipital and temporal bones

Front 25

What important foramina are found in the temporal bone and at its border?

Back 25

Stylomastoid foramen (in between Styloid and Mastoid processes) and the Jugular Foramen, bordered by the Temporal and Occipital bones

Front 26

What foramen travels laterally below the occipital Condyle?

Back 26

Hypoglossal canal

Front 27

What important passage is found medial to the styloid process?

Back 27

Carotid Canal

Front 28

What are the three general regions of the inside of the cranial vault?

Back 28

Anterior, middle and posterior cranial fossa

Front 29

What prominent features projects from the anterior cranial fossa and what surrounds it? What bone are they part of?

Back 29

Crista Galli, which is surrounded by the cribriform plate. Both are structures found on the Ethmoid Bone

Front 30

What forms the posterior border of the anterior cranial fossa?

Back 30

The posterior border is formed by the lesser wing of the sphenoid bone and the jugum (middle portion of the lesser wing)

Front 31

What process project from the medial portion of the lesser wing of the sphenoid?

Back 31

The anterior clinoid processes

Front 32

What foramen is found in the anterior portion of the palatine process of the maxilla?

Back 32

Incisive Foramen

Front 33

What is the name of the region directly posterior to the posterior clinoid processes?

Back 33

Clivus (Occipital Bone)

Front 34

What prominent markings are found in the posterior cranial fossa?

Back 34

The transverse and sigmoid sinuses, where important blood vessels travel

Front 35

What hollow feature is found in the frontal sinus?

Back 35

Frontal Sinus, located medially in the bone above the orbits

Front 36

What foramina is located in the frontal bone?

Back 36

Supraorbital foramina

Front 37

What bones articulate with the frontal bone?

Back 37

Parietal, sphenoid, zygomatic, nasal, maxilla, lacrimal, and ethmoid

Front 38

What bones articulate with the parietal bones?

Back 38

Occipital, frontal, temporal, sphenoid

Front 39

What bones articulate with the occipital bone?

Back 39

parietal, temporal, sphenoid

Front 40

What prominent foramen is formed between the lesser wing and the greater wing of the sphenoid bone?

Back 40

Superior orbital fissure

Front 41

What foramina is found just medial to the anterior clinoid processes? What separates them?

Back 41

The optical canals which are separated by the optic groove

Front 42

Where would one find the lateral masses? And what project from

Back 42

On the sides of the Ethmoid Bone, where the middle and superior nasal conchae project off

Front 43

What perforations are found in the roof of the ethmoid bone?

Back 43

Cribriform plate for passage of the olfactory nerve

Front 44

Like the frontal bone, what is found behind the wall of the maxilla?

Back 44

The maxillary sinus

Front 45

What two foramina can be found in the maxilla?

Back 45

The incisive and infraorbital

Front 46

The chin is called?

Back 46

The mental protuberance

Front 47

Where does the mandible come in contact with the skull?

Back 47

Mandibular fossa, located in the temporal bone

Front 48

What are the two processes of the mandible?

Back 48

Coronoid and condylar processes. The condylar is the one which articulates with the mandibular fossa

Front 49

What is the joint called where the mandible meets the petrous temporal bone?

Back 49

The temporomandibular joint

Front 50

What bone forms the lateral wall of the orbit as well as the lateral portion of the floor?

Back 50

The zygomatic bone

Front 51

What bones form the medial wall of the orbit?

Back 51

Ethmoid, lacrimal, nasal and partially frontal/maxilla

Front 52

Vomer?

Back 52

Posterior and lower portion of the nasal septum

Front 53

What are the projections on the hyoid bone called?

Back 53

Lesser and Greater Cornu