Fibrovascular polyp of the esophagus. â Even rarer than the above two, it occurs as a large mass of connective tissue, blood vessels and fat enclosed in a sheath of epithelial cells. It is suspended by a stalk from the wall of the tube discussed. It can be up to 50 cm long and occurs in the upper third of the tube.he polyps are smooth, round and grow from the wall of the esophagus. It is rarely cancerous and can be removed by an endoscopic procedure. Patients mostly donât report symptoms from these. However, some may complain of chest pain and dysphagia.
A simple circuit requires three (3) things: 1  A source of electrical potential difference or voltage. 2  A conductive path which would allow for the movement of charges. 3  An electrical resistance (resistor) which is loosely defined as any object that uses electricity to do work. simple circuit requires three (3) things: 1  A source of electrical potential difference or voltage. 2  A conductive path which would allow for the movement of charges. 3  An electrical resistance (resistor) which is loosely defined as any object that uses electricity to do work.
This circuit has a power source, a complete path for electrons to flow, and a resistor as the load. An electric circuit is a path in which electrons from a voltage or current source flow.Electric current flows in a closed path called an electric circuit. The point where those electrons enter an electrical circuit is called the source of electrons.The point where the electrons leave an electrical circuit is called the return or earth ground.he part of an electrical circuit that is between the electrons' starting point and the point where they return to the source is called an electrical circuit's load.