Question:
Response:
Neuro-structures 19
What is the name of the nerve marked with an asterisk?
Which structures belong to the paravertebral ganglia?
Here you see a dissection specimen from the inside of the left chest half. The lung and pleura have been removed to expose an underlying elongated nerve structure. This is indicated by arrows. Which structure is it?
Here you see a dissection specimen from the inside of the left chest half. The lung and pleura have been removed to expose underlying neural structures. The spine, ribs, sympathetic trunk and intercostal nerves can be seen. A number of structures running between the sympathetic trunk and the intercostal nerves are pointed out. Which structures are these?
Here you see a dissection specimen from the inside of the left chest half. The lung and pleura have been removed to expose underlying neural structures. These are indicated by arrows. Which structure is it/which structures are they?
The animation shows the route of the sympathetic innervation to certain target organs. The synapse takes place in a ganglion in the sympathetic trunk (= a paravertebral ganglion), at the level of entry into the sympathetic trunk, or higher or lower (not shown), after which the spinal nerve is reached via the grey ramus communicans. The stimulus is then further conducted through the posterior and anterior ramus of the spinal nerve. Which target organs / target organ are involved?
The animation shows the route of the sympathetic innervation to certain target organs. The synapse takes place in a ganglion in the sympathetic trunk (= a paravertebral ganglion), at the level of entry into the sympathetic trunk, or higher (not shown), after which the target organ is reached via splanchnic nerves. Which target organs / target organ are involved?
The animation shows the route of the sympathetic innervation to certain target organs. The synapse takes place in a prevertebral ganglion. Which target organs / target organ are involved?
Which structures belong to the prevertebral ganglia?
Which structure / structures is / are indicated by a blue rectangle?
Which structure / structures is / are indicated by a blue rectangle? They surround the origin of the superior mesenteric artery.
Here you can see a dissection of the inside of the thorax. Heart and lungs have been removed. The aortic arch with its three main branches and the trachea and main bronchi and esophagus can be seen (marked "oes."). On either side (with white arrows) a long nerve is indicated that crosses over the subclavian artery, releases a branch (indicated by gray arrows), on the left around the aortic arch, on the right around the subclavian artery, and then continues behind the trachea (actually behind the lung hilum, but the remaining structures in it have been removed) and finally runs to the esophagus. There it forms a plexus, but it is no longer present in this preparation. Which nerve is it?
