Skull (Skeletal System)

Question 1

What are the 2 functional divisions of the skeletal system?

Answer 1

• Axial Skeleton

- Appendicular Skeleton

Question 2

What are the 2 divisions of bones of the skull?

Answer 2

• Neurocranium (brain case bones)

- Viscerocranium (facial bones)

Question 3

List the 8 Neurocranium bones. (Which are paired)

Answer 3

-Frontal Bone
-Parietal Bones (2)
-Occipital Bone
-Temporal Bone (2)
-Sphenoid Bone
Ethmoid Bone

Question 4

Which cranial bones are paired?

Answer 4

Parietal Bones and Temporal Bones

Question 5

List the 15 facial bones.

Answer 5

• Mandible
• Ethmoid Bone
• Vomer
• Maxilla (2)
• Inferior nasal concha (2)
• Zygomatic Bones (2)
• Palatine Bones (2)
• Nasal Bones (2)
• Lacrimal Bones (2)

Question 6

Which 3 facial bones are NOT paired?

Answer 6

Mandible, Ethmoid Bone, Vomer

Question 7

What are the 4 main sutures of the skull?

Answer 7

• Sagittal
• Coronal
• Lamboidal
• Squamous

Question 8

What are the fibrous membranes present during infancy between the bones of the cranium?

Answer 8

Fontanelles

Question 9

Palpation of the Fontanelles can indicate what 3 things?

Answer 9

1) growth progress
2) level of hydration
3) level of intracranial pressure

Question 10

What are the 3 cranial fossa of the skull?

Answer 10

1) Anterior Cranial Fossa
2) Middle Cranial Fossa
3) Posterior Cranial Fossa

Question 11

What is the function of the foramen of the skull?

Answer 11

Openings/holes allow for passage of nerves.

Question 12

The temporal bones contain which 2 foramen?

Answer 12

Carotid Foramen and Jugular Foramen

Question 13

Which cranial bone does the supraorbital foramen pierce?

Answer 13

Frontal Bone

Question 14

The Infraorbital foramen passes through which bone?

Answer 14

Maxilla

Question 15

What structure passes through the Foramen Magnum?

Answer 15

Spinal Cord

Question 16

Which foramen is located on the Ethmoid bone?

Answer 16

Olfactory Foramen.

Question 17

The Optic Foramen is located on which cranial bone?

Answer 17

Sphenoid Bone

Question 18

What joint is formed by the mandibular condyle and the mandibular fossa?

Answer 18

Termporomandibuar Joint (TMJ)

Question 19

What structure articulates with the occipital condyles?

Answer 19

They form the first articulation with the vertebrae column.

Question 20

Which joint is formed between the occipital condyles and C1?

Answer 20

Atlanto-occipital joint.

Question 21

Which joint is formed between the atlas and the axis? (C1 and C2)

Answer 21

Atlantoaxial joint

Question 22

Which bone of the skull contains the Infraorbital foramen?

a) frontal
b) Ethmoid
c) sphenoid
d) maxilla
e) mandible

Answer 22

d) Maxilla (below eye orbit)

Question 23

What are the 2 paired bones of the skull?

Answer 23

Parietal Bones and Temporal Bones

Question 24

Which bone articulates with every other bone of the skull?

Answer 24

Sphenoid bone.

Question 25

Which bones do the supraorbital and Infraorbital foramen pierce?

Answer 25

Supra-frontal bone

Infra- Maxilla

Question 26

Which 2 foramen pass through the temporal bones?

Answer 26

Carotid and Jugular Foramina

Question 27

The sphenoid bone houses which foramen?

Answer 27

Optic Foramen

Question 28

The olfactory foramen is located on which bone

Answer 28

Ethmoid Bone

Question 29

The Termporomandibuar joint (TMJ) is what type of synovial joint?

Answer 29

Hinge Joint

Question 30

What boney landmark of the face is comprised of 2 bones?

Answer 30

Zygomatic arch= temporal and Zygomatic bone