Thoracic ganglion
thoracic ganglion n.
Any of 11 or 12 ganglions at the level of the head of each rib on either side that with the connecting nerve cords constitute the thoracic portion of the sympathetic trunk.
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- Thoracic iliocostal muscle
thoracic iliocostal muscle n. A muscle with origin from the medial side of the angles of the lower six ribs, with insertion to the angles of the upper six ribs, with nerve supply from the dorsal branches of the thoracic nerves, and whose action extends, abducts, and rotates the thoracic vertebrae.
- Thoracic limb
thoracic limb n. See upper extremity.
- Thoracic longissimus muscle
thoracic longissimus muscle n. A muscle with origin from the transverse processes of the lower thoracic vertebrae, with insertion into the ribs between the angles and tubercles, and into the transverse processes of the upper lumbar vertebrae, by medial slips into the accessory processes of the upper lumbar vertebrae and into the transverse processes of […]
- Thoracic nerve
thoracic nerve n. Any of 12 mixed motor and sensory nerves on each side of the spine, supplying muscles and skin of the thoracic and the abdominal walls.
- Thoracic nucleus
thoracic nucleus n. A column of large neurons located in the base of the posterior gray column of the spinal cord, extending from the first thoracic through the second lumbar segment, and giving rise to the dorsal spinocerebellar tract of the same side. Also called dorsal nucleus.