The nerves from the sympathetic trunk emerge through the T1-T4 thoracic ganglia and travel to both the sinoatrial and atrioventricular nodes, as well as to the atria and ventricles.
22.
Behind, the artery is separated from the transverse processes of the cervical vertebrae by the longus colli and longus capitis muscles, the sympathetic trunk being interposed between it and the muscles.
23.
As it crosses the neck of the first rib it lies medial to the anterior division of the first thoracic nerve, and lateral to the first thoracic ganglion of the sympathetic trunk.
24.
Lymphatic drainage frequently passes the prelaryngeal lymph nodes ( located just above the isthmus ), and the sympathetic nerve supply from the superior, middle and inferior cervical ganglion of the sympathetic trunk.
25.
This pathway or communication is referred to as the cervical sympathetic trunk-submandibular gland ( CST-SMG ) axis, a regulatory system that plays a role in the systemic control of inflammation.
26.
They run lateralward and backward on the bodies of the lumbar vertebrae, behind the sympathetic trunk, to the intervals between the adjacent transverse processes, and are then continued into the abdominal wall.
27.
A common sign is a constricted pupil ( Horner's syndrome ) on the ipsilateral side due to loss of sympathetic innervation to the eye, caused by damage to the sympathetic trunk in the neck.
28.
The preganglionic sympathetic fibers will enter into the sympathetic trunk and either synapse at the ganglion on the same level, or travel up or down the sympathetic trunk to arrive at the correct spinal level for their action.
29.
The preganglionic sympathetic fibers will enter into the sympathetic trunk and either synapse at the ganglion on the same level, or travel up or down the sympathetic trunk to arrive at the correct spinal level for their action.
30.
Most often, the fibers from the lateral grey column will travel along the sympathetic trunk until they synapse on one of the trunk s ganglia, which then passes on the information via postganglionic fibers in a gray ramus communicans.
