1. Briefly describe the process of inflammation in an area that has been traumatized.
Inflammation is a defense mechanism of the body and it happens in three basic stages: vasodilation and increased permeability, emigration of phagocytes, and tissue repair. This happens in response to trauma or infection. After trauma or injury, blood vessels dilate, and white blood cells move to the injury to engulf and break down pathogens or cells that may cause harm to the body.
2. Choose one type of Immunity (Innate and Humoral) and explain how its mechanism protects our body.
Innate immunity is nonspecific and does not target a specific pathogen only. This is the immunity or the defense system we are born with. This is also known as the first line of defense against pathogens or foreign substances. Mainly, it is the physical barriers like the skin, mucous membrane, and the cornea, which are the first to protect against invaders. In a sense, the innate immunity is like an early warning system. If the first line of defense is not enough to eliminate the pathogens, the second line of defense (antimicrobial chemicals, natural killer cells, phagocytes, inflammation, and fever) proceeds to protect the body.
Reference:
Tortora, G. J., & Derrickson, B. (2017). PRINCIPLES OF ANATOMY & PHYSIOLOGY (15th ed.).