- May 2, 2026The intercostal brachial nerve is the lateral cutaneous branch of the second intercostal nerve (T2) that crosses the axilla to…
- May 2, 2026The cardiac plexus is a network of autonomic nerves at the base of the heart, formed by the cardiac branches…
- May 2, 2026The pulmonary plexus is an autonomic network at each pulmonary hilum, formed by the pulmonary branches of the vagus nerve…
- May 2, 2026The oesophageal plexus is formed around the thoracic oesophagus by the two vagal trunks as they descend through the posterior…
- May 2, 2026The thoracic dorsal (posterior) rami arise from each thoracic spinal nerve just outside the intervertebral foramen and divide into medial…
- May 2, 2026The lesser splanchnic nerve is formed by preganglionic sympathetic fibres from the 10th and 11th thoracic ganglia (T10-T11). It descends…
- May 2, 2026The greater splanchnic nerve is formed by preganglionic sympathetic fibres from the fifth to ninth thoracic sympathetic ganglia (T5-T9). It…
- May 2, 2026The thoracodorsal nerve innervates the latissimus dorsi, entering it at the neurovascular hilum approximately 10-12 cm from the posterior axillary…
- May 2, 2026The intercostal nerves (T1-T11) supply the chest and abdominal wall in dermatomal bands. The classic dermatome pattern — each nerve…
- May 2, 2026The twelve pairs of thoracic nerve anterior rami are called intercostal nerves (T1 through T11) and subcostal nerve (T12), each…