Your immune system is made up of different organs, cells, and proteins that work together as your body's defense against outside invaders, such as bacteria, viruses, fungi, and toxins. There are two main parts of the immune system: the innate immune system and the adaptive immune system.
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https://youtu.be/PSRJfaAYkW4
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Your innate immune system is your body's first line of defense. You are born with innate immunity (aka non-specific immunity) that you inherit from your parents.
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Skin is the first line of defense in the innate immune system. Skin is a protective barrier that produces oils, enzymes, and amino acids to destroy germs before they enter the body.
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The eyes, nose, and mouth are first-line defenders in the innate immune response:
The eyes produce tears.
The nose produces mucus.
The mouth produces saliva.
All these substances contain an enzyme called Lysozyme (lie-so-zime), which destroys bacteria.
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Adaptive immunity is also called acquired immunity or specific immunity. This kind of immunity is not present at birth. It develops as your body encounters foreign substances and develops defense strategies to fight them off.
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When your adaptive immune system detects bacteria, viruses, fungi, and toxins, your body learns the best way to fight by developing a memory of the enemy to ward off future attacks.
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The adaptive immune system produces special white blood cells, called lymphocytes, that produce antibodies. Lymphocytes are produced in the thymus gland and the bone marrow.
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The thymus gland is active from birth to puberty. This gland produces white blood cells called T lymphocytes (T cells). After exposure to a foreign agent, T cells monitor your body’s environment to prevent future attacks. If the invader reappears, your T cells will kill it.
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Bone marrow produces white blood cells called B lymphocytes (B cells). B cells fight bacteria and viruses by making antibodies, which lock onto the surfaces of infectious agents and mark them for destruction by other immune cells.
BG114 Microbiome, Immune, and Lymphatic Systems
Maria Bowie
Created on March 28, 2024
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Transcript
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JOIN A GAME
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THE IMMUNE SYSTEM
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Your immune system is made up of different organs, cells, and proteins that work together as your body's defense against outside invaders, such as bacteria, viruses, fungi, and toxins. There are two main parts of the immune system: the innate immune system and the adaptive immune system.
14
https://youtu.be/PSRJfaAYkW4
15
Your innate immune system is your body's first line of defense. You are born with innate immunity (aka non-specific immunity) that you inherit from your parents.
16
Skin is the first line of defense in the innate immune system. Skin is a protective barrier that produces oils, enzymes, and amino acids to destroy germs before they enter the body.
17
The eyes, nose, and mouth are first-line defenders in the innate immune response:
- The eyes produce tears.
- The nose produces mucus.
- The mouth produces saliva.
All these substances contain an enzyme called Lysozyme (lie-so-zime), which destroys bacteria.18
19
Adaptive immunity is also called acquired immunity or specific immunity. This kind of immunity is not present at birth. It develops as your body encounters foreign substances and develops defense strategies to fight them off.
20
When your adaptive immune system detects bacteria, viruses, fungi, and toxins, your body learns the best way to fight by developing a memory of the enemy to ward off future attacks.
21
The adaptive immune system produces special white blood cells, called lymphocytes, that produce antibodies. Lymphocytes are produced in the thymus gland and the bone marrow.
22
The thymus gland is active from birth to puberty. This gland produces white blood cells called T lymphocytes (T cells). After exposure to a foreign agent, T cells monitor your body’s environment to prevent future attacks. If the invader reappears, your T cells will kill it.
23
Bone marrow produces white blood cells called B lymphocytes (B cells). B cells fight bacteria and viruses by making antibodies, which lock onto the surfaces of infectious agents and mark them for destruction by other immune cells.
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LEARN & PLAY: THE NERVOUS SYSTEM
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