What is myoglobin ? Where is it present?

Explanation

### Step-by-Step Solution:

1. **Definition of Myoglobin**: Myoglobin is a small protein that plays a crucial role in the storage and transport of oxygen in muscle tissues.

2. **Location of Myoglobin**: Myoglobin is primarily found in two key areas:
- **Heart**: It is present in the cardiac muscle cells, where it helps supply oxygen to the heart muscle.
- **Skeletal Muscles**: Myoglobin is also abundant in skeletal muscles, where it facilitates oxygen storage and release during muscle contraction.

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