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BIO NMDCAT Muscles
nmdcat.online July 28, 2026

During laboratory investigation, muscle fibers from a specific organ are stretched significantly. Instead of immediately contracting, the tissue relaxes and adapts to the new length before eventually contracting. This property, known as the stress-relaxation response, is highly characteristic of:

A. The biceps brachii
B. The left ventricle
C. The urinary bladder
✓
D. The intercostal muscles

📝 Explanation

The stress-relaxation response is a unique characteristic of smooth muscle, allowing hollow organs like the urinary bladder and stomach to expand and store contents without immediately triggering a strong reflex contraction that would expel the contents.

📖 Additional Information

  • The biceps brachii
  • The left ventricle
  • The urinary bladder
  • The intercostal muscles

The stress-relaxation response is a unique characteristic of smooth muscle, allowing hollow organs like the urinary bladder and stomach to expand and store contents without immediately triggering a strong reflex contraction that would expel the contents.

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