34 Questions
Which of the following is the most superior and shallow depression of the cranial cavity?
Anterior cranial fossa
Which cranial fossa is the most superior and shallow?
Anterior cranial fossa
Which of the following bones is not part of the anterior cranial fossa?
Occipital bone
What does the anterior cranial fossa accommodate?
The anteroinferior portions of the frontal lobes of the brain
What does the anterior cranial fossa accommodate?
The anteroinferior portions of the frontal lobes of the brain
What is the function of the frontal crest?
Acts as a site of attachment for the falx cerebri
Which bones make up the anterior cranial fossa?
Frontal bone, ethmoid bone, and sphenoid bone
What is the crista galli?
A bony landmark in the midline of the ethmoid bone
Which bones make up the anterior cranial fossa?
The frontal bone, ethmoid bone, and sphenoid bone
What is the function of the cribriform plate?
Contains numerous small foramina transmitting olfactory nerve fibers into the nasal cavity
What is the bony landmark in the midline of the frontal bone that acts as a site of attachment for the falx cerebri?
Frontal crest
What is the bony landmark in the midline of the frontal bone that acts as a site of attachment for the falx cerebri?
The frontal crest
What is the bony landmark in the midline of the ethmoid bone that acts as another point of attachment for the falx cerebri?
Crista galli
Which bone separates the anterior and middle cranial fossae?
Sphenoid bone
What is the bony landmark in the midline of the ethmoid bone that acts as another point of attachment for the falx cerebri?
The crista galli
What is the most superior and shallow depression of the cranial cavity?
Anterior cranial fossa
What is the sheet of bone on either side of the crista galli that contains numerous small foramina transmitting olfactory nerve fibers into the nasal cavity?
Cribriform plate
What is the sheet of bone on either side of the crista galli that contains numerous small foramina transmitting olfactory nerve fibers into the nasal cavity?
The cribriform plate
What does the anterior cranial fossa accommodate?
Anteroinferior portions of the frontal lobes of the brain
What separates the anterior and middle cranial fossae?
The lesser wings of the sphenoid bone
What separates the anterior and middle cranial fossae?
Lesser wings of the sphenoid bone
What bone contains the main foramina of the anterior cranial fossa?
Ethmoid bone
Which bone contains the main foramina of the anterior cranial fossa?
The ethmoid bone
Which bone contains the main foramina of the anterior cranial fossa?
Ethmoid bone
What is the consequence of a fracture of the cribriform plate?
Major consequences
What are the three depressions that the cranial cavity is divided into?
Anterior, middle, and posterior cranial fossae
What are the three depressions in the cranial cavity called?
Anterior, middle, and posterior cranial fossae
Which of the following can have major consequences?
Fracture of the cribriform plate
What can have major consequences if it is fractured?
Cribriform plate
Which of the following is not a bone that makes up the anterior cranial fossa?
Temporal bone
Which portion of the brain does the anterior cranial fossa accommodate?
Anteroinferior portions of the frontal lobes
Which of the following is not one of the bones that make up the anterior cranial fossa?
Parietal bone
What is the function of the lesser wings of the sphenoid bone?
Separate the anterior and middle cranial fossae
How many bones make up the anterior cranial fossa?
Three
Study Notes
- The cranial cavity is divided into three depressions: anterior, middle, and posterior cranial fossae.
- The anterior cranial fossa is the most superior and shallow of the three.
- It accommodates the anteroinferior portions of the frontal lobes of the brain.
- The anterior cranial fossa consists of three bones: the frontal bone, ethmoid bone, and sphenoid bone.
- The frontal crest is a bony landmark in the midline of the frontal bone that acts as a site of attachment for the falx cerebri.
- The crista galli is a bony landmark in the midline of the ethmoid bone that acts as another point of attachment for the falx cerebri.
- The cribriform plate is a sheet of bone on either side of the crista galli that contains numerous small foramina transmitting olfactory nerve fibers into the nasal cavity.
- The lesser wings of the sphenoid bone separate the anterior and middle cranial fossae.
- The ethmoid bone contains the main foramina of the anterior cranial fossa.
- Fracture of the cribriform plate can have major consequences.
Test your knowledge of the anterior cranial fossa with this informative quiz. Learn about the bones that make up this important area of the skull and the bony landmarks that act as attachment sites for the falx cerebri. Discover the functions of the cribriform plate and the lesser wings of the sphenoid bone, and understand the potential consequences of a cribriform plate fracture. With this quiz, you'll gain a deeper understanding of the anatomy of the anterior cranial fossa.
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