One of the cells pictured below is a human brain cell. the other cell is found in human blood. which cell came from the brain explain your answer

The cell which has thin long extensions is the brain cell. Brain cells are responsible for carrying and relaying information from one cell to another in the body. In order to do this, they have specialized structures (i.e. "extensions") that are unique to them. Shown in one of the pictures below (2nd one) is a neuron or brain cell with its corresponding parts. 

Sources: 
https://jobworksbiology.wikispaces.com/file/view/Cells,+Photosynthesis,+and+Respiration+Practice+Que....

https://www.sciencenewsforstudents.org/article/learning-rewires-brain

The answer would be cstep by step explanation: all of the other animals developed their features while the salamander was born with them