A heterologous protein; however, any abnormal substance (bacteria, viruses, cancer cells) in the body is called an antigen
A pathogen is a foreign body, bacteria, or virus.
A foreign substance is a substance that doesn't belong somewhere. A piece of glass or splinter is a foreign substance that people get in their body.
"Antibody" is the medical term meaning immunity protein. When your body is presented with a foreign protein, the immune system makes antibodies against that protein.
Health professionals usually refer to dirt in the eye as an ocular foreign body.
antibodies
The disorder caused by the body's exaggerated response to foreign chemicals and proteins is called an allergy. Symptoms can range from mild reactions like itching and sneezing to severe reactions like anaphylaxis.
Immunology is the medical term that refers to the study of the body's defense against diseases and foreign substances. It focuses on understanding how the immune system works to protect the body from infections and other harmful invaders.
antibodies
Foreign Body
Proteins you eat are 'Foreign proteins' to your body. If they enter like that in your body will provoke immunological response. So they must be separated to individual Amine acids and absorbed. They will be 'rearranged' according to the need of the body to form body proteins.
These proteins are called antibody.
The foreign medical graduate are required to register wit the medical body of the country concerned. Once they are registered, they can practice.