How does the body protect itself from invaders?

How does the body protect itself from invaders?

Physical and chemical barriers form the first line of defense when the body is invaded. The skin has thick layer of dead cells in the epidermis which provides a physical barrier. Periodic shedding of the epidermis removes microbes. The mucous membranes produce mucus that trap microbes.

Which is the first line of Defense of the body?

Physical and chemical barriers form the first line of defense when the body is invaded. Physical Barriers. The skin has thick layer of dead cells in the epidermis which provides a physical barrier. Periodic shedding of the epidermis removes microbes.

How does the body protect itself from microbes?

Physical Barriers. The skin has thick layer of dead cells in the epidermis which provides a physical barrier. Periodic shedding of the epidermis removes microbes. The mucous membranes produce mucus that trap microbes. Hair within the nose filters air containing microbes, dust, pollutants.

Which is a physical barrier in the respiratory tract?

Physical Barriers The skin has thick layer of dead cells in the epidermis which provides a physical barrier. The mucous membranes produce mucus that trap microbes. Hair within the nose filters air containing microbes, dust, pollutants Cilia lines the upper respiratory tract traps and propels inhaled debris to throat

Your body has an amazing internal defense mechanism called the immune system which protects you from bacteria and viruses that can lead to illness. A healthy immune system produces a variety of different cells to attack the invading bacteria and viruses. Your immune system patrols and. protects your body from harmful invaders.

How does the immune system kill an invader?

The invader is killed inside the immune system cells. These cells are called phagocytes. The acquired immune system, with help from the innate system, produces cells (antibodies) to protect your body from a specific invader. These antibodies are developed by cells called B lymphocytes after the body has been exposed to the invader.

How does the body keep things out of your body?

In general, your body fights disease by keeping In general, your body fights disease by keeping things out of your body that are foreign. Your primary defense against pathogenic germs are physical barriers like your skin You also produce pathogen-destroying chemicals, like

How does the body respond to invading pathogens?

The innate immune response forms the first line of defense against invading pathogens. Innate immunity includes barriers and a variety of cells and molecules that are part of the rapid response to threats to our health.