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Questions and Answers
What is the location of the anterior cranial fossa in relation to the other cranial fossae?
Which part of the brain is accommodated by the middle cranial fossa?
Which of the following statements best describes the posterior cranial fossa?
How is the middle cranial fossa shaped?
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Which cranial fossa is primarily responsible for accommodating the frontal lobe?
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Study Notes
Intracranial Fossae
- The floor of the Cranial cavity is divided into three distinct depressions: the Anterior Cranial Fossa, the Middle Cranial Fossa, and the Posterior Cranial Fossa.
- Each fossa accommodates a different part of the brain.
Anterior Cranial Fossa
- The anterior cranial fossa is the most shallow and superior of the three cranial fossae.
- It lies superiorly over the nasal and orbital cavities.
- It accommodates part of the frontal lobe of the brain.
Middle Cranial Fossa
- Located centrally in the cranial floor.
- Butterfly shaped.
- The middle part accommodates the pituitary gland.
- The two lateral parts accommodate the temporal lobes of the brain.
Posterior Cranial Fossa
- The posterior cranial fossa is the deepest and most posterior of the three cranial fossae.
- It accommodates the brain stem and the cerebellum.
- It is located inferiorly to the tentorium cerebelli.
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