Neuroanatomy — Flashcards

Flashcard 481: Axons that are myelinated by _____ have the potential to regenerate following injury

Answer: Schwann cells

Flashcard 482: What cells synthesize the myelin for cranial nerve I?_____

Answer: None

Flashcard 483: Which type of glial cell is a derivative of mononuclear phagocytes?_____

Answer: Microglia

Flashcard 484: The middle of the 3 primary vesicles (developing brain) is the _____

Answer: midbrain

Flashcard 485: What structure is formed by the decussation of internal arcuate fibers in the medulla and carries fine touch, vibration, and proprioception to the VPL nucleus of the thalamus?

Answer: Medial lemniscus

Extra: The medial lemniscus represents the second-order neurons of the dorsal column-medial lemniscus (DCML) system. These neurons originate in the nucleus gracilis and nucleus cuneatus, cross the midline as internal arcuate fibers in the medulla, and ascend to the ventral posterolateral (VPL) nucleus of the thalamus.

Flashcard 486: 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 487: Lesions of the _____ cerebellum (medial or lateral) may result in nystagmus and head tilting

Answer: medial

Flashcard 488: Hypertensive hemorrhages most often occur in the _____ of the basal ganglia, followed by thalamus, pons, and cerebellum

Answer: putamen

Flashcard 489: Axons from the ciliospinal center of Budge exit at T1 and synapse on the _____ ganglion

Answer: superior cervical

Flashcard 490: Which gyrus is located on the medial surface of the occipital lobe, inferior to the calcarine sulcus?

Answer: Lingual gyrus

Extra: The lingual gyrus is located on the medial surface of the occipital lobe, bounded superiorly by the calcarine sulcus and inferiorly by the collateral sulcus. It plays a role in visual processing.