Neuroanatomy — Flashcards

Most (80-90%) of the corticospinal tract fibers decussate just below the _____ at the pyramidal decussation

Contents of superior orbital fissure (within the common tendinous ring): - _____ - Abducens nerve - Nasociliary nerve (Mnemonic: BAN)

The fasciculus _____ is the medial (medial or lateral) dorsal column

The nerve to _____, branch of 3rd cranial nerve carries parasympathetic fibers to the ciliary ganglion.

Hint: muscle

The _____ region of the spinal cord supplied by the anterior spinal artery territory is a watershed area, as the artery of Adamkiewicz anatamoses with the ASA to supply T9 to the Conus Medullaris

_____ visceral efferent column contains neurons innervating muscles developed from the pharyngeal arches: Motor nucleus of V nerve: innervating muscles of masticationMotor nucleus of VII nerve: innervating muscles of facial expressionNucleus ambiguus ( IX, X, XI): innervating stylopharyngeus, pharyngeal, external laryngeal and oesophageal striated muscles

Hint: G/S

Rules of 4: There are four _____ structures that start with 'M'1. Motor pathway (corticospinal tract)2. Medial lemniscus 3. Medial longitudinal fasciculus (MLF) 4. Motor nuclei/nerves (CN III, IV, VI, XII)

Pre-ganglionic sympathetic neurons from _____ - L2 can bypass the sympathetic chain and synapse in prevertebral (pre-aortic) ganglia (splanchnic nerves)

The _____ segment of facial nerve runs above the oval window (stapes) and below the horizontal/lateral semicircular canal.

Syringomyelia results in damage to the _____ tract 2nd-order neurons crossing in the anterior white commissure