Let’s go through the text step by step to understand what each part of the immune and lymphatic system does.
---
Antibodies:
These are like little soldiers that recognize bad guys (microbes and toxins). When they find them, they mark them so other parts of the body can attack and destroy them.
Bone Marrow:
This is inside your bones. It makes:
- Red blood cells → carry oxygen
- White blood cells → fight infections
- Platelets → help stop bleeding by clotting
The picture shows spongy bone with red bone marrow inside — that’s where these cells are made.
Thymus:
It filters your blood AND makes a special kind of white blood cell called T-lymphocytes. These are important for fighting off invaders.
Spleen:
Acts like a filter too. It removes microbes, gets rid of old or damaged red blood cells, and also helps make antibodies and lymphocytes to fight germs.
Complement System:
This isn’t an organ — it’s a group of proteins that jump in to help antibodies attack marked microbes. Think of them as backup troops.
Lymphatic System:
Made of tubes that carry a clear liquid called lymph. It has three main parts:
1.
Lymph nodes – trap and clean microbes from lymph
2.
Lymph vessels – tubes that move lymph around
3.
Lymphocytes – white blood cells that fight infection
---
Now, since there’s no actual question asked in the image (like “What does the spleen do?” or “Name two things bone marrow makes”), I’ll assume you’re being asked to summarize or identify key functions based on the reading.
But if this is meant to be a comprehension check, here’s what you should know:
✔ Antibodies mark microbes for destruction.
✔ Bone marrow makes red blood cells, white blood cells, and platelets.
✔ Thymus makes T-lymphocytes.
✔ Spleen filters blood, destroys old red blood cells, and supports immunity.
✔ Complement system = proteins that help antibodies.
✔ Lymphatic system = network of tubes carrying lymph; includes nodes, vessels, and lymphocytes.
---
Final Answer:
The immune and lymphatic system includes antibodies, bone marrow, thymus, spleen, complement system, and lymphatic system — all working together to fight microbes, produce blood cells, filter blood, and protect the body from infection.
Parent Tip: Review the logic above to help your child master the concept of immune system worksheet.
