Visceral afferent pathways — Flashcards

Flashcard 1: Which reflex is mediated by CN V3 (afferent and efferent)? _____

Answer: Jaw jerk reflex

Flashcard 2: 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.

Flashcard 3: Which nerves (2) carry parasympathetics to the GI tract? _____

Answer: Vagus, Pelvic splanchnic

Flashcard 4: Which parasympathetics innervate the regions of the hindgut? _____

Answer: Pelvic splanchnic nerves (S2-S4)

Flashcard 5: Sensory fibers containing pain and temperature information ascend or descend 1 - 2 spinal segments in _____ tract before synapsing in the dorsal horn with a 2nd-order neuron

Answer: Lissauer's

Flashcard 6: celiac ganglion

Answer: neural crest