The Immune System Answers

What is the function of the immune system?

Use the drop-down menus to determine whether the following barriers are physical, chemical, or biological. lysozyme skin phagocytes Langerhans cells acid and oil secretions sneezing or coughing

skin

phagocytes

Langerhans cells

acid and oil secretions

sneezing or coughing

A is an agent that can cause infections and diseases.

The complement system is a barrier of the immune system. The complement system is a group of in the blood that detect pathogens that have entered the body. The complement system can cause , the swelling of a part of the body accompanied by redness, swelling, and pain as a response to infection.

Use the drop-down menus to determine which type of white blood cell is described below. activate memory cells engulf and digest pathogens produce antibodies

Identify the immune response described as nonspecific or specific. uses memory cells to fight off an infection from a pathogen evident by a sneeze, cough, fever, or other physical symptom recognizes antigens present on pathogens and attacks the pathogen with antibodies builds immunity to specific diseases that had previously entered the body does not target specific pathogens

Determine whether the statements below are true or false. When the body has a weakened immune system, the production of antibodies is increased. When the body has a weakened immune system, abnormal cells steal nutrients from healthy cells. When the body has a weakened immune system, the body is more susceptible to disease. When the body has a weakened immune system, the body mistakes pathogens as healthy cells and does not attack them.

What is it called when the body’s immune system attacks its healthy cells, mistaking them for pathogens?

Which of the following best describes why someone with an immunodeficiency disorders may get sick more easily than someone without the disorder?