The Cranium

Question 1

What are the bones of the cranium important for?

Answer 1

• house and protects the brain

Question 2

What are the bones of the cranium?

Answer 2

• 1 Frontal bone
• 2 Parietal bones (peri-parietal)
• 1 occipital bone
• 2 temporal bones
• 1 Sphenoid bone
• 1 Ethmoid bones

Question 3

What cranium bones can we see from the Anterior view?

Answer 3

• Frontal bone
• Parietal bones
• Sphenoid bone
• Ethmoid bone

Question 4

In the anterior view; what are the Frontal bone landmarks?

Answer 4

• Frontal (coronal) suture

* Supraorbital foremen (notch)

Question 5

In the anterior view; what are the Parietal bones landmarks?

Answer 5

• Sagittal suture

Question 6

In the anterior view; what are the Temporal bone’s landmarks?

Answer 6

• Squamous Suture

Question 7

In the anterior view what are the Sphenoid landmarks?

Answer 7

• Supraorbital fissure

* Infraorbital fissure

Question 8

In the anterior view; what are the Ethmoid landmarks?

Answer 8

• Perpendicular plate

Question 9

What cranium bones can you see form the lateral view?

Answer 9

• Frontal
• Parietal
• Occipital
• Sphenoid

Question 10

In lateral view; what are the Frontal landmarks?

Answer 10

• Frontal (coronal) suture

* Pterion

Question 11

In lateral view; what are the Parietal bone landmarks?

Answer 11

• Pterion

Question 12

In lateral view; what are the Occipital landmarks?

Answer 12

• Lambdoid suture

Question 13

In Lateral view what are the temporal landmarks?

Answer 13

• Pterion
• external acoustic (auditory) meatus
• mastoid process
• styloid process
• zygomatic process

Question 14

In lateral view; what are the Sphenoid bone’s landmarks?

Answer 14

• Ptarion

Question 15

What does the Ptarion region connect?

Answer 15

• Frontal bone
• Parietal bones
• Temporal bones
• Sphenoid bone

Question 16

In the inferior view; what cranium bones can you see?

Answer 16

• temporal bones
• occipital bone
• sphenoid bone

Question 17

In the inferior view; what are the landmarks of the temporal bone?

Answer 17

• zygomatic process
• zygomatic arch
• mandibular fossa
• Styloid process
• mastoid process
• foramen lucerum
• carotid canal

Question 18

In the inferior view; what are the landmarks of the sphenoid bone?

Answer 18

• foramen ovale

* foramen spinosum

Question 19

In the inferior view; what are the landmarks of the occipital bone?

Answer 19

• jugular foremen
• occipital condyle
• foremen magnum

Question 20

What cranium bones can you see in the internal cranial floor?

Answer 20

• frontal
• parietal
• temporal
• sphenoid
• occipital
• ethmoid

Question 21

In the internal cranial floor view; what are the landmarks of the ethmoid bone?

Answer 21

• crista Galli

* cribriform plate

Question 22

In the internal cranial floor view; what are the landmarks of the sphenoid bone?

Answer 22

• greater wing
• foramen rotudum
• sells turcica
• foramen ovale
• foramen spinosum
• Optic foramen
• hypophyseal fossa

Question 23

In the internal cranial floor view; what are the landmarks of the temporal bone?

Answer 23

• foramen lacerum
• carotid canal
• internal auditory meatus

Question 24

In the internal cranial floor view; what are the landmarks of the occipital bone?

Answer 24

• foramen magnum
• jugular foramen
• fossa for cerebellum