FACTS & HINTS
High-Yield Facts
Anatomic Points
Autonomic innervation of the abdominal viscera
A perivascular plexus of nerves accompanying the arterial supply to each organ provides autonomic innervation to the abdominal viscera.
Each plexus has sympathetic and parasympathetic input, both with motor and sensory divisions.
Motor control governs glandular secretion, smooth muscle activity, and vascular tone.
Afferent nerves mediate distension of organs and tension on mesenteries.