QuestionSBA
QuestionChoice
The image shows a superior view (looking inside) of the bones forming the anterior cranial fossa. The crista galli bony projection and the cribriform plate of the ethmoid bone are found in the middle of the image. The frontal bones are found laterally. The maxillary sinuses are the largest of the paranasal sinuses, found inferolateral to the nasal cavities. They are found inferior to the level of the image. Thus, the blue arrow indicates the frontal air sinuses, the most superior of the paranasal air sinuses, found in the frontal bones.
10041662
b
Maxillary sinus
QuestionChoice
The image shows a superior view (looking inside) of the bones forming the anterior cranial fossa. The crista galli bony projection and the cribriform plate of the ethmoid bone are found in the middle of the image. The frontal bones are found laterally. There is no such thing as an occipital sinus, because the occipital bone found at the back of the skull is not pneumatised (and it is not shown in the image). Thus, the blue arrow indicates the frontal air sinuses, the most superior of the paranasal air sinuses, found in the frontal bones.
10041665
e
Occipital sinus
QuestionChoice
The image shows a superior view (looking inside) of the bones forming the anterior cranial fossa. The crista galli bony projection and the cribriform plate of the ethmoid bone are found in the middle of the image. The frontal bones are found laterally. The ethmoid sinuses are three small air sinuses (anterior, middle and posterior) found within the ethmoid bone. However, the blue arrow indicates the frontal air sinuses, the most superior of the paranasal air sinuses, found in the frontal bones.
10041663
c
Ethmoid sinus
QuestionChoice
The image shows a superior view (looking inside) of the bones forming the anterior cranial fossa. The crista galli bony projection and the cribriform plate of the ethmoid bone are found in the middle of the image. The frontal bones are found laterally. The sphenoid sinus is an air sinus found within the body of the sphenoid bone, immediately underneath the sella turcica of the pituitary gland. However, the blue arrow indicates the frontal air sinuses, the most superior of the paranasal air sinuses, found in the frontal bones.
10041664
d
Sphenoid sinus
QuestionChoice
The image shows a superior view (looking inside) of the bones forming the anterior cranial fossa. The crista galli bony projection and the cribriform plate of the ethmoid bone are found in the middle of the image. The frontal bones are found laterally. The blue arrow indicates the frontal air sinuses, the most superior of the paranasal air sinuses, found in the frontal bones.
10041661
a
Frontal sinus
Concept
Chapter
2693
5293
Bones of the face
Topic
201
Head and neck anatomy
20631
Picture
3230
86 - Bones of the face (frontal sinus).png
images/3ngnzi841727765045979.jpg
images/3ngnzi841727765045979_256.jpg
images/3ngnzi841727765045979_512.jpg
YAkGDII2GYeQd4d0dHZGZHACNw==
Topic
201
Head and neck anatomy
Identify the anatomical structure indicated by the blue arrow in the image below.
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a