The first line of defense of the immune system involves physical barriers like the skin and mucous membranes that help prevent pathogens from entering the body. These barriers also have reflex responses, such as coughing or sneezing, that help expel potential invaders before they can cause harm.
Reflexes are a part of the body's defense mechanism.
true
true
First of all, you might want to spell DEFENSE correctly.
External defenses - Includes skin and mucous membranes. Internal defenses - Includes phagocytic cells, inflammatory responses, and antimicrobial proteins.
Yes
yes, reflexes are your bodies natural defense against things that are dangerous. That's why they are hard to prevent or use when you want to use them. When you burn yourself your body tells you to move away. Your reflexes tell your body what is dangerous and wants you to stay away.
The skin and mucous membranes are examples of physical barriers that serve as the first line of defense for the immune system. They help to prevent pathogens from entering the body and causing infection.
skin and mucous membranes first line of defense second line-leukocytes and macrophages, inflammation and fever third is immune system
Mucous secretions are produced by epithelial membranes as a first line of defense protection. The mucous helps to trap pathogens and foreign particles, preventing them from entering the body and causing infections. Additionally, epithelial membranes also produce antimicrobial peptides that can help to kill or inhibit the growth of pathogens.
The body's second line of defense, which includes inflammatory responses and phagocytic cells, comes into play when pathogens manage to breach the first line of defense (skin and mucous membranes). These responses help contain and eliminate the pathogens before they can cause harm.