Question

streched receptors are present in which part of tetrapods

Answer 1

Answer:-

Stretch receptors called Golgi tendon organs are found within the collagen fibers of tendons and within joint capsules. They are generally located in series with the muscle rather than the parallel arrangement of the intrafusal muscle fibers.

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Explanation:-

Stretch receptors are mechanoreceptors responsive to distention of various organs and muscles, and are neurologically linked to 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 antidiuretic hormone (ADH) from the posterior pituitary gland.

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Types include:-

• Golgi organ
• Muscle spindle, sensory receptors within the belly of a muscle, which primarily detect changes in the length of this muscle
• Pulmonary stretch receptors, mechanoreceptors found in the lungs
• Chordotonal organ, in insects

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Answer 2

In tetrapods, stretched receptors are present in the skin and muscles.

• In modern tetrapods, some receptors are present on the skin as well as the muscles, these receptors include proprioceptors and stretch receptors.
• Stretch receptors aid in instructing about the position to the brain and altitude to the limbs.
• Tetrapods having stretch receptors in the muscles are known as muscle spindles.
• Proprioceptors in tetrapods helps the brain by instructing the brain about the surfaces as well as their positions. These receptors are present in the paired appendages.

Hence, Skin and muscles are the part where stretched receptors are present in tetrapods.