Podcast
Questions and Answers
What are the three depressions in the floor of the cranial cavity?
What are the three depressions in the floor of the cranial cavity?
- Anterior, posterior, and inferior cranial fossa
- Anterior, middle, and posterior cranial fossa (correct)
- Anterior, middle, and lateral cranial fossa
- Anterior, medial, and posterior cranial fossa
Which cranial fossa contains the brainstem and cerebellum?
Which cranial fossa contains the brainstem and cerebellum?
- Middle cranial fossa
- Posterior cranial fossa (correct)
- All cranial fossae contain the brainstem and cerebellum
- Anterior cranial fossa
Which fossa in the floor of the cranial cavity is the deepest and houses the brainstem and cerebellum?
Which fossa in the floor of the cranial cavity is the deepest and houses the brainstem and cerebellum?
- Temporal cranial fossa
- Middle cranial fossa
- Anterior cranial fossa
- Posterior cranial fossa (correct)
Which cranial fossa is the deepest and houses the brainstem and cerebellum?
Which cranial fossa is the deepest and houses the brainstem and cerebellum?
What bones bound the posterior cranial fossa?
What bones bound the posterior cranial fossa?
What bones bound the posterior cranial fossa?
What bones bound the posterior cranial fossa?
What is transmitted through the internal acoustic meatus?
What is transmitted through the internal acoustic meatus?
What bones bound the posterior cranial fossa?
What bones bound the posterior cranial fossa?
What is transmitted through the foramen magnum?
What is transmitted through the foramen magnum?
Which nerves and artery are transmitted through the internal acoustic meatus?
Which nerves and artery are transmitted through the internal acoustic meatus?
Where are the jugular foramina located?
Where are the jugular foramina located?
What is the largest foramen in the skull and what does it transmit?
What is the largest foramen in the skull and what does it transmit?
What nerves are transmitted through the jugular foramina?
What nerves are transmitted through the jugular foramina?
What is transmitted through the hypoglossal canal?
What is transmitted through the hypoglossal canal?
What is transmitted through the foramen magnum?
What is transmitted through the foramen magnum?
Which nerves are transmitted through the jugular foramina?
Which nerves are transmitted through the jugular foramina?
What is cerebellar tonsillar herniation?
What is cerebellar tonsillar herniation?
What is transmitted through the hypoglossal canal?
What is transmitted through the hypoglossal canal?
What is transmitted through the hypoglossal canal?
What is transmitted through the hypoglossal canal?
What can cause cerebellar tonsillar herniation?
What can cause cerebellar tonsillar herniation?
What is cerebellar tonsillar herniation?
What is cerebellar tonsillar herniation?
What can compression of the pons and medulla due to cerebellar tonsillar herniation result in?
What can compression of the pons and medulla due to cerebellar tonsillar herniation result in?
What is cerebellar tonsillar herniation?
What is cerebellar tonsillar herniation?
What can cause cerebellar tonsillar herniation?
What can cause cerebellar tonsillar herniation?
What can cause cerebellar tonsillar herniation?
What can cause cerebellar tonsillar herniation?
What is the internal acoustic meatus?
What is the internal acoustic meatus?
What is the function of the cerebellum?
What is the function of the cerebellum?
What is the role of the medulla oblongata?
What is the role of the medulla oblongata?
What can compression of the pons and medulla due to cerebellar tonsillar herniation lead to?
What can compression of the pons and medulla due to cerebellar tonsillar herniation lead to?
What is the largest foramen in the skull?
What is the largest foramen in the skull?
What can happen if cerebellar tonsillar herniation leads to compression of the pons and medulla?
What can happen if cerebellar tonsillar herniation leads to compression of the pons and medulla?
Which cranial cavity floor depression is located in the middle?
Which cranial cavity floor depression is located in the middle?
Flashcards
Three cranial cavity depressions?
Three cranial cavity depressions?
Anterior, middle, and posterior cranial fossa.
Brainstem and cerebellum fossa?
Brainstem and cerebellum fossa?
Posterior cranial fossa
Bones bounding posterior cranial fossa?
Bones bounding posterior cranial fossa?
Occipital and temporal bones.
Internal acoustic meatus contents?
Internal acoustic meatus contents?
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Foramen magnum transmits?
Foramen magnum transmits?
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Location of jugular foramina?
Location of jugular foramina?
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Largest foramen & contents?
Largest foramen & contents?
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Nerves through jugular foramina?
Nerves through jugular foramina?
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Hypoglossal canal transmits?
Hypoglossal canal transmits?
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Cerebellar tonsillar herniation?
Cerebellar tonsillar herniation?
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Cause of cerebellar tonsillar herniation?
Cause of cerebellar tonsillar herniation?
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Herniation compresses pons/medulla result?
Herniation compresses pons/medulla result?
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What is the internal acoustic meatus?
What is the internal acoustic meatus?
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Function of the cerebellum?
Function of the cerebellum?
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Role of the medulla oblongata?
Role of the medulla oblongata?
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Compression of pons and medulla leads to?
Compression of pons and medulla leads to?
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Largest foramen in the skull?
Largest foramen in the skull?
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Herniation compresses pons and medulla?
Herniation compresses pons and medulla?
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Middle cranial cavity depression?
Middle cranial cavity depression?
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Study Notes
- The cranial cavity floor has three depressions: anterior, middle, and posterior cranial fossae.
- The posterior cranial fossa has the brainstem and cerebellum.
- It is bounded by the occipital bone and two temporal bones.
- The foramen magnum is the largest foramen in the skull and transmits the medulla of the brain, meninges, vertebral arteries, spinal accessory nerve, dural veins, and spinal arteries.
- The jugular foramina are located on either side of the foramen magnum and transmit several nerves and veins.
- The hypoglossal canal transmits the hypoglossal nerve.
- Cerebellar tonsillar herniation is the downward displacement of the cerebellar tonsils through the foramen magnum.
- It is caused by raised intracranial pressure due to various factors.
- Cerebellar tonsillar herniation can lead to compression of the pons and medulla, resulting in cardiorespiratory arrest.
- The internal acoustic meatus is an oval opening that transmits the facial nerve, vestibulocochlear nerve, and labyrinthine artery.
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