- May 2, 2026The first sternocostal joint is a synchondrosis rather than a synovial joint, with the first costal cartilage directly fused to…
- May 2, 2026The costovertebral joints are paired articulations between each rib head and the thoracic vertebral bodies, with most ribs articulating with…
- May 2, 2026The sternocostal joints connect the costal cartilages to the sternum, with the first rib forming a cartilaginous synchondrosis that is…
- May 2, 2026The sternoclavicular joint is the only bony articulation connecting the upper limb to the axial skeleton, making it the structural…
- May 2, 2026The least splanchnic nerve (lowest splanchnic) arises from the 12th thoracic ganglion, passing through the diaphragm to synapse in the…
- May 2, 2026The gray rami communicantes carry postganglionic sympathetic fibres from the thoracic sympathetic chain back to the intercostal nerves for distribution…
- May 2, 2026The white rami communicantes are the preganglionic sympathetic nerve fibres connecting the ventral roots of T1-L2 spinal nerves to the…
- May 2, 2026The thoracic splanchnic nerves are preganglionic sympathetic nerves formed from the thoracic sympathetic ganglia: the greater splanchnic nerve (T5-T9 or…
- May 2, 2026The vagal cardiac branches are parasympathetic fibres from the vagus nerve (CN X) descending to the heart via superior and…
- May 2, 2026The thoracic dorsal rami arise from each thoracic spinal nerve after it exits the intervertebral foramen and immediately divide into…