11. Major Functions of the ANS Body Organ Sympathetic Division Parasympathetic Division Pupil of the eye Heart Stomach Intestines Adrenal gland Blood vessels in the skin Bladder Dilates Rapid, accelerates Inhibits activity Inactive Secretes adrenalin and noradrenaline Constricts Relaxes Constricts Slows Stimulates activity Active No intervention Dilate Contracts
12. Schematic diagram of the NS Nervous System (NS) Central NS Peripheral NS Brain Spinal Cord Somatic NS (Voluntary) Autonomic NS (Involuntary) Sympathetic NS (Arousing) Parasympathetic NS (Calming)