Neuroanatomy — Flashcards

Flashcard 501: Identify the brainstem level characterized by the presence of colliculi, the cerebral aqueduct, and the exit of CN IV.

Answer: Caudal midbrain (at the level of the inferior colliculus)

Flashcard 502: The _____ nerve plexus lies between the circular and longitudinal muscles layers of the gut wall

Answer: myenteric (Auerbach)

Flashcard 503: All the axons in the cochlear part of CN VIII enter the _____ junction and synapse in the ventral and dorsal cochlear nuclei

Answer: pontomedullary

Flashcard 504: Which midbrain structure, located at the level of the superior colliculus, appears reddish due to its iron content and is involved in motor coordination?

Answer: Red nucleus

Flashcard 505: Which cranial nerves (4) are located in the pons? _____

Answer: V, VI, VII, and VIII

Flashcard 506: How many neurons are required for the spinocerebellar tract pathway? _____

Answer: Two

Flashcard 507: Which tract is responsible for transmitting unconscious proprioception to the cerebellum?

Answer: Spinocerebellar tract

Extra: The spinocerebellar tracts (dorsal and ventral) are located in the lateral funiculus of the spinal cord and are essential for coordinating movement by conveying unconscious proprioceptive information from the body to the cerebellum.

Flashcard 508: Which nerves (2) carry parasympathetics to the GI tract? _____

Answer: Vagus, Pelvic splanchnic

Flashcard 509: The medial lemniscus is positioned more _____ (medially or laterally) as it ascends through the midbrain

Answer: laterally

Flashcard 510: What does Brodmann area 4 refer to? _____

Answer: Primary motor cortex