This structure (tip of yellow arrow) in the right ventricle is composed of what?

The probe is pointing to rami communicantes. What type of nerve fibers are in a gray ramus?……….:.

Identify this structure in the posterior mediastinum

Rhizobium species  

Organisms that use CO2 as their source of carbon are called  

Identify this great vessel.

Identify the vessel at the tip of the probe

Identify this nerve

The terms yeast, mold, and mushrooms refer to fungal  

Nematodes