Stress-relaxation response

Definition

The stress-relaxation response in smooth muscle is a physiological reaction where the muscle adjusts to maintain tension despite changes in length. This enables organs like the stomach and bladder to gradually fill and expand without causing a significant increase in internal pressure.

Related terms

Smooth Muscle:

Composed of spindle-shaped cells found in the walls of hollow organs, controlling involuntary movements like digestion and blood flow.

Myogenic: Refers to the intrinsic ability of vascular smooth muscle to contract without external stimuli by responding directly to stretch or tension.

Peristalsis:

A series of wave-like muscle contractions that move food through the digestive tract