Bone marrow

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/bone-marrow

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How heavy is Bone marrow?Approximately 5% of total body mass
2. What is the scientific name for blood cell production?Hematopoiesis
3. What is the primary locations in adult humans?Ribs, vertebrae, sternum, and bones of the pelvis
4. What is bone marrow and why is it called a factory?Bone marrow is the soft, spongy tissue inside bones that makes all the blood cells. It’s called a factory because it works nonstop to produce red cells, white cells, and platelets that keep us healthy.
5. Where in the body is bone marrow found?Bone marrow lives inside the hollow parts of bones, especially in the ribs, spine, sternum, and pelvis. These are the main places where the body makes blood.

Hematopoietic Stem Cells (HSCs): Multipotent progenitor cells within bone marrow responsible for generating all types of blood cells.
Mesenchymal Stem Cells (MSCs): Adult stem cells in bone marrow stroma that can differentiate into bone, cartilage, and adipose tissue.
Leukemia: A type of cancer characterized by the abnormal proliferation of blood cells, originating in the bone marrow.
Bone Marrow Transplant (BMT): A medical procedure to replace diseased bone marrow with healthy hematopoietic stem cells.