Stretch receptors are mechanoreceptors responsive to distention of various organs and muscles, and are neurologically linked to the medulla

Medulla oblongata

The medulla oblongata is the lower half of the brainstem. In discussions of neurology and similar contexts where no ambiguity will result, it is often referred to as simply the medulla...

 in the brain stem via afferent nerve fibers. Examples include stretch receptors in the arm and leg muscles and tendons, in the heart, in the colon wall, and in the lungs.

Stretch receptors are also found around the carotid artery, where they monitor blood pressure and stimulate the release of ADH

Vasopressin

Arginine vasopressin , also known as vasopressin, argipressin or antidiuretic hormone , is a neurohypophysial hormone found in most mammals, including humans. Vasopressin is a peptide hormone that controls the reabsorption of molecules in the tubules of the kidneys by affecting the tissue's...

 from posterior pituitary gland.

Types include:

• Golgi organ
  Golgi organ
  The Golgi organ , is a proprioceptive sensory receptor organ that is located at the insertion of skeletal muscle fibers into the tendons of skeletal muscle...
  
  
• Muscle spindle
  Muscle spindle
  Muscle spindles are sensory receptors within the belly of a muscle, which primarily detect changes in the length of this muscle. They convey length information to the central nervous system via sensory neurons. This information can be processed by the brain to determine the position of body parts...
  
  
• Pulmonary stretch receptors
  Pulmonary stretch receptors
  Pulmonary stretch receptors are mechanoreceptors found in the lungs.When the lung expands, the receptors imitate the Hering-Breuer reflex, which reduces the respiratory rate...
  
  
• Chordotonal organ
  Chordotonal organ
  Chordotonal organs are stretch receptor organs in insects and other arthropods They are used to detect the position of the body segments and appendages, or, in tympanal organs, the vibrations caused by sounds. An example for hearing is the Johnston's organ at the base of the antennae. Sound waves...
  
  , in insects