What type of tissue produces blood cells?

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6 points
Periosteum
Compact Bone
Bone Marrow
Cartilage
Spongy Bone

Bone Marrow

The type of tissue that produces blood cells is bone marrow.

The type of tissue that produces blood cells is bone marrow. To arrive at this answer, we can evaluate the provided options:

1. Periosteum: The periosteum is a connective tissue membrane that covers the outer surface of bones. While it plays a role in bone growth and repair, it does not produce blood cells.

2. Compact Bone: Compact bone is the dense outer layer of bone tissue that provides strength. Like periosteum, it does not produce blood cells.

3. Bone Marrow: This is the correct answer. Bone marrow is a soft, spongy tissue that is found in the center of bones. It is responsible for producing blood cells (red blood cells, white blood cells, and platelets) through a process called hematopoiesis.

4. Cartilage: Cartilage is a flexible connective tissue found in various parts of the body, such as joints and the ear. It does not produce blood cells.

5. Spongy Bone: Spongy bone, also known as cancellous bone, is found at the ends of long bones and inside flat bones. While it contains red bone marrow (which produces blood cells), it is not the tissue itself that directly produces blood cells.

Therefore, the correct answer is bone marrow.