Anatomy of Thoracic Organs

Autonomic Nervous System Supply to Organs

• Heart receives sympathetic supply from T1-T5 and parasympathetic supply from the vagus nerve.
• Pericardium receives afferent pain supply from the phrenic nerve (C3-C5).
• Lungs receive sympathetic supply from T1-T5 and parasympathetic supply from the vagus nerve.
• Visceral pleura receives no autonomic supply, while parietal pleura receives afferent pain supply from the phrenic and intercostal nerves.

Abdominal Organs

• Liver receives sympathetic supply from T6-T9 and parasympathetic supply from the vagus nerve.
• Gallbladder, pancreas, and spleen receive sympathetic supply from T6-T9 and parasympathetic supply from the vagus nerve.
• Stomach and small intestine receive sympathetic supply from T8-T10 and parasympathetic supply from the vagus nerve.
• Caecum and descending colon receive sympathetic supply from T10 and parasympathetic supply from the vagus nerve.
• Transverse colon receives sympathetic supply from T11 and parasympathetic supply from the vagus nerve.
• Descending colon receives sympathetic supply from T2-L1 and parasympathetic supply from S2-4.

Lower Abdominal Organs

• Sigmoid colon receives sympathetic supply from L2/3 and parasympathetic supply from S2-4.
• Rectum receives parasympathetic supply from S2-4.
• Anal canal receives parasympathetic supply from S2-4.
• Kidneys receive sympathetic supply from T10-L1 and parasympathetic supply from the vagus nerve.
• Suprarenal glands receive sympathetic supply from T6-L2 and no parasympathetic supply.
• Ureters receive sympathetic supply from T11-L2 and parasympathetic supply from S2-4.
• Bladder receives sympathetic supply from T11-L2 and parasympathetic supply from S2-4, with superior and inferior parts receiving different supplies.
• Urethra receives parasympathetic supply from S2-4.

Autonomic Nervous System Supply to Organs

• Heart receives sympathetic supply from T1-T5 and parasympathetic supply from the vagus nerve.
• Pericardium receives afferent pain supply from the phrenic nerve (C3-C5).
• Lungs receive sympathetic supply from T1-T5 and parasympathetic supply from the vagus nerve.
• Visceral pleura receives no autonomic supply, while parietal pleura receives afferent pain supply from the phrenic and intercostal nerves.

Abdominal Organs

• Liver receives sympathetic supply from T6-T9 and parasympathetic supply from the vagus nerve.
• Gallbladder, pancreas, and spleen receive sympathetic supply from T6-T9 and parasympathetic supply from the vagus nerve.
• Stomach and small intestine receive sympathetic supply from T8-T10 and parasympathetic supply from the vagus nerve.
• Caecum and descending colon receive sympathetic supply from T10 and parasympathetic supply from the vagus nerve.
• Transverse colon receives sympathetic supply from T11 and parasympathetic supply from the vagus nerve.
• Descending colon receives sympathetic supply from T2-L1 and parasympathetic supply from S2-4.

Lower Abdominal Organs

• Sigmoid colon receives sympathetic supply from L2/3 and parasympathetic supply from S2-4.
• Rectum receives parasympathetic supply from S2-4.
• Anal canal receives parasympathetic supply from S2-4.
• Kidneys receive sympathetic supply from T10-L1 and parasympathetic supply from the vagus nerve.
• Suprarenal glands receive sympathetic supply from T6-L2 and no parasympathetic supply.
• Ureters receive sympathetic supply from T11-L2 and parasympathetic supply from S2-4.
• Bladder receives sympathetic supply from T11-L2 and parasympathetic supply from S2-4, with superior and inferior parts receiving different supplies.
• Urethra receives parasympathetic supply from S2-4.