16. ANS Preganglionic Parasympathetic Sympathetic Somatic Nerves Ach Ach Ach Ach Ach Ganglion Epi Skeletal Muscle Ach Ach Norepi Via Bld Effector Organs + Pupil -Heartrate +Exocrine Glands +GIT Smooth Muscle +Lung Smooth Muscle +Sweatgld -Bloodvessel [Some ] - Pupil +Heart Rate -Gastrointestinal SM -Lung SM +Blood Vessels [Most] Often The Parasympathetic Features Predominates Post Ganglionic