Skull Info

Question 1

How many bones does the skull consist of?

Answer 1

22

Question 2

How many sutures connect the cranial bone and what are they?

Answer 2

• 4
• Coronal
• Sagittal
• Squamosal
• Lambdoidal

Question 3

What are the two groups that the skull is divided in?

Answer 3

• Cranial
• Facial

Question 4

How many bones make up the cranium?

Answer 4

8

Question 5

How many bones make up the face?

Answer 5

14

Question 6

What two groups are the cranial bones separated into?

Answer 6

• Calvaria
• Cranial floor

Question 7

What does calvaria mean?

Answer 7

skull cap

Question 8

Whats another name for skull cap?

Answer 8

Calvaria

Question 9

How many bones make up the calvaria and what are they?

Answer 9

• 4
• Frontal
• Occipital
• Right parietal
• Left parietal

Question 10

How many bones make up the cranial floor and what are they?

Answer 10

• 4
• Ethmoid
• Sphenoid
• Right temporal
• Left temporal

Question 11

What portions is the frontal bone divided into?

Answer 11

• Vertical portion
• Horizontal portion

Question 12

What does the vertical portion of the frontal bone form?

Answer 12

Forehead

Question 13

What does the horizontal portion of the frontal bone form?

Answer 13

Superior part of the orbit

Question 14

What is the horizontal portion of the frontal bone also known as?

Answer 14

The orbital portion

Question 15

What is the vertical portion of the frontal bone also known as?

Answer 15

Squamous portion & frontal squama

Question 16

What portion of the frontal bone forms the forehead?

Answer 16

Vertical portion

Question 17

What portion of the frontal bone is aka the squamous portion & frontal squama?

Answer 17

Vertical portion

Question 18

What portion of the frontal bone form the superior part of the orbit?

Answer 18

Horizontal portion

Question 19

What portion of the frontal bone is aka the orbital portion?

Answer 19

Horizontal portion

Question 20

How many landmarks do you see on the frontal bone and what are they?

Answer 20

• 6
• Supraorbital Groove (SOG)
• Supraorbital Margin (SOM)
• Superciliary Ridge (Arch)
• Glabella
• Ethmoidal Notch
• Nasal Spine (aka frontal spine)

Question 21

Whats another name for the nasal spine?

Answer 21

Frontal spine

Question 22

Whats another name for the frontal spine?

Answer 22

Nasal Spine

Question 23

What is the supraorbital margin (SOM)?

Answer 23

The superior rim of the orbit

Question 24

What is the supraorbital groove (SOG)?

Answer 24

A slight depression above each eyebrow

Question 25

What does the supraorbital groove (SOG) mark?

Answer 25

The highest level of facial bone mass

Question 26

What is the superciliary ridge (arch)?

Answer 26

Ridge of bone beneath each eyebrow

Question 27

What is the ethmoidal notch?

Answer 27

A notch/hole for the ethmoid bone to fit into

Question 28

What is the glabella?

Answer 28

Smooth raised prominence between the eyebrows just above the bridge of the nose

Question 29

Where does the glabella lie between?

Answer 29

Between the superciliary ridges

Question 30

Where is the nasal spine (frontal spine) found?

Answer 30

At the anterior end of the ethmoidal notch

Question 31

What is the nasal spine (frontal spine)?

Answer 31

Most superior part of the nasal septum

Question 32

Which landmark of the frontal bone create a slight depression above each eyebrow?

Answer 32

Supraorbital groove (SOG)

Question 33

Which landmark of the frontal bone marks the highest level of facial bone mass?

Answer 33

Supraorbital groove (SOG)

Question 34

What landmark of the frontal bone is the superior rim of the orbit?

Answer 34

Supraorbital margin (SOM)

Question 35

What landmark of the frontal bone is the ridge of the bone beneath each eyebrow?

Answer 35

Supercilliary ridge (Arch)

Question 36

What landmark of the frontal bone is found at the most anterior end of the ethmoidal notch?

Answer 36

Nasal spine (frontal spine)

Question 37

What landmark of the frontal bone is the most superior part of the nasal septum?

Answer 37

Nasal spine (fronal spine)

Question 38

What landmark of the frontal bone is created for the ethmoid bone to fit into a notch?

Answer 38

Ethmoidal notch

Question 39

What landmark of the frontal bone lies between the superciliary ridges?

Answer 39

Glabella

Question 40

What landmark of the frontal bone is the smooth raised prominence between the eyebrows just above the bridge of the nose?

Answer 40

Glabella

Question 41

How many parts does the occipital bone consist of and what are they?

Answer 41

- 4 - Squamous portion (aka squama) - 2 occipital condyles - Basilar portion