Chapter 7 - The Skeleton

Question 0

The skull has…

Answer 0

Two sets of bones

1. Cranial bones (8)
2. Facial bones (14)

Question 1

The axial skeleton consists of…

Answer 1

80 bones

Three major regions - skull, vertebral column, thoracic cage

Question 2

What are the sutures of the cranial vault?

Answer 2

• Lambdoid suture
• Coronal suture
• Squamous suture
• Sagittal suture

Question 3

What are the fontanelles of the fetal skull?

Answer 3

• Anterior fontanelle
• Posterior fontanelle
• Sphenoidal fontanelle
• Mastoid fontanelle

Question 4

What are the cranial bones?

Answer 4

1. Frontal bone
2. Parietal bone(2)
3. Occipital bone Temporal bone (2)
4. Sphenoid bone
5. Ethmoid bone

Question 5

Landmarks of the frontal bone

Answer 5

Supra orbital margin

Supra orbital foramen

Question 6

Coronal suture separates…

Answer 6

Between the parietal bones and frontal bone

Question 7

Sagittal suture separates…

Answer 7

Between right and left parietal bone

Question 8

Lambdoid(al) suture separates…

Answer 8

Between parietal bone and occipital bones

Question 9

Squamous suture separates…

Answer 9

Between parietal and temporal bones

Question 10

Landmarks of occipital bone

Answer 10

External occipital protuberance Occipital condyles Foramen magnum

Question 11

Landmarks of temporal bone

Answer 11

Squamous portion Zygomatic process Zygomatic arch Mastoid process Styloid process Mandibular fossa External auditory meatus Carotid foramen

Question 12

Sphenoid bone represents a…

Answer 12

Bat or butterfly

Question 13

Three processes of the sphenoid bone

Answer 13

Greater wings Lesser wings Pterygoid processes

Question 14

Other landmarks of the sphenoid bone

Answer 14

Sella turcica Superior orbital fissure Optic foramen

Question 16

Landmarks of the ethmoid bone

Answer 16

Lateral masses Superior nasal concha Middle nasal concha Perpendicular plate Cribiform plate Crista galli

Question 17

What are the facial bones?

Answer 17

Mandible Maxillary bones (maxillae) (2) Zygomatic bones (2) Nasal bones (2) Nasal bones (2) Lacrimal bones (2) Palatine bones (2) Vomer Inferior nasal conchae (2)

Question 18

What are the landmarks of the Mandible?

Answer 18

• Ramus
• Body
• Angle
• Condylar process
• Coronoid process
• Mandibular notch

Question 19

What are the landmarks of the Maxillary Bones?

Answer 19

• Alveolar process (margin)
• Palatine process

Question 20

What is the landmark of the Temporal bone?

Answer 20

• Temporal process

Question 21

What are the Nasal bones and Lacrimal bones?

Answer 21

• Nasal Bones
  
  • Form bridge of nose
• Lacrimal bones
  
  • In medial walls of orbits
  • Lacrimal fossa houses lacrimal sac and lacrimal duct

Question 22

What are the flexible curved structure containing 26 irregular bones?

Answer 22

They are the Vertebral Column

1. Cervical vertebrae (7)
2. Thoracic vertebrae (12)
3. Lumbar vertebrae (5)
4. Sacrum vertebrae (5 fused)
5. Coccyx (5 fused)