Review Note
Last Update: 04/01/2024 11:46 AM
Current Deck: MEDICINE Study Session::Y4::2a NEUROLOGY SYSTEM::ANATOMY EXAM
PublishedCurrently Published Content
Question
Describe the structure of the medullary pyramids
Answer
Diagram of the brainstem, including medulla oblongata.
Focused diagram of the medulla oblongata.
Cross-section of spinal cord and medulla oblongata.
- Medullary pyramids are anterior swellings of the medulla oblongata.
- They are located on either side of the anterior median fissure.
- Consist of bundled corticospinal nerve fibres.
- Descending corticospinal fibres cross-over just inferiorly of the pyramids.
- = Decussation of the pyramids.
Topic
Physiology
Extra
Source: Snell's Clinical Neuroanatomy 8E, Chapter 5
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