Question 1

The inferior bony nasal septum is formed by the vomer.

Accepted Answer

The vomer, along with the perpendicular plate of the ethmoid bone, forms the inferior portion of the bony nasal septum, which divides the nasal cavity into two chambers.

Question 2

The superior, middle, and inferior conchae extend medially from the lateral masses of the ethmoid bone.

Accepted Answer

False

Question 3

Which statement regarding the orbit is false?
A)The orbit is conical in shape.
B)The anterior orbit is the apex.
C)The weakest part of the orbit is the floor.
D)The orbits are angled medially and superiorly.
E)All of the above

Accepted Answer

The anterior orbit is not the apex; rather, it is the base of the conical shape of the orbit, with the apex being the posterior part where the optic canal is located.

Question 4

All four rectus muscles of the eye are seen on a single axial image.

Accepted Answer

On a single axial (cross-sectional) image of the eye, typically only two of the four rectus muscles (medial and lateral rectus muscles) can be seen clearly due to their anatomical positioning. The superior and inferior rectus muscles are not visible in the same plane due to their more superior and inferior positions relative to the axial plane.

Question 5

The floor of the orbit is formed by the sphenoid bone.

Accepted Answer

The floor of the orbit is primarily formed by the maxilla, along with contributions from the zygomatic bone and the palatine bone. The sphenoid bone contributes to the back part of the orbit, not the floor.

Question 6

The coronal sectional imaging plane does not demonstrate the lens of the eye.

Accepted Answer

The coronal plane is parallel to the sagittal plane and perpendicular to the axial plane. It divides the body into anterior and posterior halves. The lens of the eye is located in the axial plane, so it will not be visible on a coronal sectional image.

Question 7

The part of the orbit involved in a blowout fracture is the roof.

Accepted Answer

A blowout fracture typically involves the floor of the orbit, not the roof. This type of fracture occurs when there is a direct impact to the eye, causing a sudden increase in intraorbital pressure and leading to a fracture of the thin bones at the bottom of the orbital cavity.

Question 8

The frontal paranasal sinuses are the first to appear on computed tomography (CT) coronal images arranged from anterior to posterior.

Accepted Answer

The frontal sinuses are the first to appear on CT coronal images arranged from anterior to posterior because they are the most anterior of the paranasal sinuses.

Question 9

The point where the body of the mandible meets the ramus is the mentum.

Accepted Answer

The point where the body of the mandible meets the ramus is called the angle of the mandible, not the mentum. The mentum refers to the chin area.

Question 10

The first paranasal sinuses to develop are the maxillary.

Accepted Answer

The maxillary sinuses are the first paranasal sinuses to develop, beginning to form in the third month of fetal life.

Question 11

The lateral wall of the orbit is formed by the maxillary bone.

Accepted Answer

The lateral wall of the orbit is primarily formed by the zygomatic bone and the greater wing of the sphenoid bone, not the maxillary bone.

Question 12

The last paranasal sinuses to develop are the frontal.

Accepted Answer

The answer of The last paranasal sinuses to develop are...

Question 13

The medial wall of the orbit is formed by the ethmoid and lacrimal bones.

Accepted Answer

The medial wall of the orbit is primarily formed by the ethmoid bone posteriorly and the lacrimal bone anteriorly, along with contributions from the frontal process of the maxilla and a small part of the lesser wing of the sphenoid bone.

Question 14

The superior bony nasal septum is formed by the vomer.

Accepted Answer

The superior bony nasal septum is formed by the perpendicular plate of the ethmoid bone, while the vomer forms the inferior part.

Question 15

The largest paranasal sinuses are the sphenoid.

Accepted Answer

The largest paranasal sinuses are the maxillary sinuses, not the sphenoid sinuses.

Question 16

The function of the conchae or turbinates in the nasal cavity is to divide the nasal fossae into compartments so the incoming air has time to be warmed, moistened, and filtered.

Accepted Answer

The conchae, also known as turbinates, are structures in the nasal cavity that increase the surface area for air to come into contact with the mucous membrane, allowing the air to be warmed, moistened, and filtered before it enters the lungs.

Question 17

The function of the paranasal sinuses is to lighten the head and give resonance to the voice.

Accepted Answer

The paranasal sinuses, which are air-filled spaces within the bones of the skull, help to lighten the weight of the head and also contribute to the resonance of the voice by acting as echo chambers.

Question 18

Malar bone is a synonym for zygomatic bone.

Accepted Answer

The malar bone is another term for the zygomatic bone, which is a bone in the human skull that forms the prominence of the cheek.

Question 19

The point where the body of the mandible meets the ramus is the gonion.

Accepted Answer

The gonion is the anatomical point on the mandible where the lower border of the body meets the posterior border of the ramus.

Question 20

A tripod fracture involves the disassociation of the zygoma.

Accepted Answer

A tripod fracture, also known as a trimalar fracture, involves the disassociation of the zygoma from its three attachments: the frontal bone, the maxillary bone, and the temporal bone.

Quiz 3: Face