Anterior View of the Skull

Question 1

Major bones in the anterior view of the skull

Answer 1

1. frontal bone (forehead)
2. zygomatic bones (cheekbones)
3. maxillae
4. mandible

Question 2

What are the two prominent cavities in the skull?

Answer 2

nasal cavity and orbits

Question 3

The orbits are named after?

Answer 3

rotation of the the eyes within them

Question 4

Function of the orbits

Answer 4

1. protection for the eyes
2. attachment points for the muscles moving the eyes

Question 5

What does an orbit contain?

Answer 5

• blood vessels
• nerves
• fat
• eyeball
• and muscles moving the eyeball

Question 6

Largest openings in the orbit

Answer 6

superior and inferior orbital fissures

Question 7

Function of superior and inferior orbital fissures

Answer 7

they provide openings through which nerves and blood vessels
* communicate with the orbit or,
* pass the face

Question 8

The optic nerve passes here to get to enter cranial cavity

Answer 8

optic canal

Question 9

This canal is involved in crying

passes from orbit to nasal cavity

Answer 9

nasolacrimal cavity

Question 10

This divides the nasal cavity

Answer 10

nasal septum

Question 11

This is located in the superior part of the bony part of the septum

Answer 11

perpedicular plate of ethmoid bone

Question 12

This is located in the inferior part of the bony part of the septum

Answer 12

vomer

Question 13

The anterior part of the nasal septum is formed by hyaline cartilage called the?

Answer 13

septal cartilage

Question 14

The nasal septum is located in the middle until what age ?

Answer 14

7 years old

nasal septum tends to deviate to one side beyond this age

Question 15

Lateral wall of nasal cavity has three bony shells called?

Answer 15

nasal conchae

Question 16

What are these three bony shells?

Answer 16

1. inferior nasal concha
2. middle nasal concha
3. superior nasal concha

Question 17

What separates the inferior nasal concha to the rest of the nasal conchae?

Answer 17

middle and superior nasal conchae are projections from the ethmoid bones

Question 18

What does the conchae do?

Answer 18

expand surface area in the nasal cavity to:
1. promotes the moistening and warming of inhaled air
2. removal of particles from air

Question 19

Large air-filled cavities within the bones of the nasal cavity

Answer 19

paranasal sinuses

Question 20

Function of the sinuses

Answer 20

1. decrease weight of the skull
2. act as resonating chambers during voice projection

Question 21

The paranasal sinuses include:

Answer 21

1. paird frontal sinuses
2. paired sphenoidal sinuses
3. paired maxillary sinuses
4. ethmoidal sinuses

Question 22

Ethmoidal sinuses are also known as:

Answer 22

ethmoid air cells