What is the first barrier protecting the body from foreign substances
Skin
True or False:
The purpose of the immune system is to protect and defend the body of foreign substances
True
This reflex helps expel irritants or pathogens from the nose and respiratory tract.
Sneezing
This type of blood cell carries oxygen from the lungs to the rest of the body.
Red Blood Cell
What is the body's main defense against the invasion of pathogens
The immune system
Which body organ produces the most cells
Bone marrow
What is the function of White blood cells
Consumes pathogens within the body
The acidic environment of this organ kills most ingested pathogens before they can enter the intestines.
Stomach
These small cell fragments help stop bleeding by forming clots.
Platelets
What are some ways to prevent and reduce the spread of pathogens to yourself and others
1. Hand washing
2. Masks
3. Distance
This body organ is the body’s first line of defense if pathogens are inhaled or ingested.
Tonsils
What cells does bone marrow produce
White Blood Cells
Red Blood Cells
Platelets
This tiny hair-like structure lines the respiratory tract and works with mucus to move pathogens up and out of the airways.
Cilia
These cells fight infections and are also called leukocytes.
White Blood Cells
To minimize transmission of infectious agents via contact, droplets, or aerosols, people don this collective category of items.
Personal Protective Equipment (PPE)
Which body organ stores the most red blood cells
Spleen
The spleen plays this important role in the immune response.
Filters blood and removes old and damaged cells
This substance, found in the respiratory and digestive tracts, traps pathogens and prevents them from moving deeper into the body.
Mucus Membranes
The thymus produces these cells that protect the body against foreign substances
lymphocytes
What are some ways the body weaken/attack pathogenic cells within the body.
1. Antibodies
2. Inflammation
3. Fever
What is the organ primarily responsible for the production and maturation of immune cells
Thymus
How does the immune system maintain homeostasis
1. Fight off pathogens
2. Remove dead/damaged cells
3. Regulating immune response
What do lymph nodes do to protect the body from pathogens.
1. Filter and trap pathogens
2. Alert the immune system
3. Active immune response to release immune cells
These specialized cells patrol your body to detect and destroy harmful invaders like bacteria, viruses, and parasites.
Immune cells
What is the three (3) main pathogens the body defends itself against
1. Bacteria
2. Virus
3. Fungus
Protozoa (parasites)
Helminths (worms)
Prions (Protien)