Brainstem nuclei — Flashcards

Flashcard 21: The emboliform and globose nuclei send axons that decussate in the _____ and then synapse in the red nucleus of the midbrain

Answer: superior cerebellar peduncle

Extra:   https://onlinemeded.org/spa/neurology?ref=anki 

Flashcard 22: The cranial nerves that exit _____ are typically mixed or sensory CNs

Answer: laterally

Extra: Watch associated Bootcamp video [https://app.bootcamp.com/med-school/neurology/videos/brainstem-anatomy?index=3] https://onlinemeded.org/spa/neuroscience/cranial-nerves/acquire?ref=anki

Flashcard 23: Serotonin production = _____

Answer: raphe nuclei

Extra:  https://onlinemeded.org?ref=anki 

Flashcard 24: Which brainstem nucleus is located ventrolateral to the abducens nucleus?

Answer: Facial nucleus

Extra: The facial nucleus is located in the ventrolateral tegmentum of the caudal pons. Its fibers loop dorsomedially around the abducens nucleus, forming the facial colliculus on the floor of the fourth ventricle.

Flashcard 25: Which cranial nerve(s) does the nucleus solitarius contribute to? _____

Answer: CN VII, IX, and X

Flashcard 26: Identify the nucleus with the following anatomical relations: - Located in the rostral midbrain - Anterolateral to the cerebral aqueduct - Posterior to the motor nucleus of CN III

Answer: Nucleus of Edinger-Westphal

Extra: The Edinger-Westphal nucleus is the accessory parasympathetic nucleus of the oculomotor nerve (CN III). It provides preganglionic parasympathetic innervation to the ciliary ganglion, which controls the sphincter pupillae (pupillary constriction) and the ciliary muscle (accommodation).

Flashcard 27: Which cranial nerve nucleus is located near the midline of the medulla, just beneath the floor of the fourth ventricle?

Answer: Hypoglossal nucleus (CN XII)

Flashcard 28: The red nucleus is located in the _____

Answer: rostral midbrain

Flashcard 29: Which cranial nerve(s) does the nucleus ambiguus contribute to? _____

Answer: CN IX, X, and XI (cranial portion)

Flashcard 30: Which brainstem nucleus receives discriminative touch and pressure sensations from the face via the trigeminal nerve (CN V)?

Answer: Main (Principal) sensory nucleus of CN V

Extra: The main sensory nucleus of CN V is located in the mid-pons. It mediates fine touch and pressure from the face, functioning similarly to the dorsal column-medial lemniscus system of the body.