Differentiate between Spongy bone and compact bone

Explanation

### Step-by-Step Solution:

1. **Definition**:
- **Spongy Bone**: Also known as cancellous bone, it has a porous structure.
- **Compact Bone**: Also known as cortical bone, it has a dense and solid structure.

**Hint**: Remember that spongy bone is more like a sponge, while compact bone is solid and firm.

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