The Z line is known to reside in the esophagus of animals.
This place is a demarcation line. The line is where the mucosa of the esophagus and that of the stomach meet.
The term is jtust a faint representation of the impression that is found at the gastro esophageal junction of the human body.
Read more on the Z line here:
https://brainly.com/question/1284374
#SPJ12