How does Golgi tendon reflex work?
The Golgi tendon reflex operates as a protective feedback mechanism to control the tension of an active muscle by causing relaxation before the tendon tension becomes high enough to cause damage. Second, the motor neuron from the spinal cord is inhibited via an IPSP and muscle relaxes.
What is the stimulus for the Golgi tendon organ?
The contraction of these fibres, exerting strain on the collagenous bundle and causing deformation of sensory terminals, is the adequate stimulus of the tendon organ. For this stimulus, the tendon organ has a very low threshold, so that a single fibre twitch can elicit a discharge from the receptor.
What kind of receptor is involved in the Golgi tendon reflex?
The Inverse Myotatic Reflex Involves Sensors of Muscle Force in the Tendon
| Afferents | ||
|---|---|---|
| Receptor | Axon | Function |
| Secondary muscle spindle | II | Static length |
| Golgi tendon organ | Ib | Muscle tension |
| Efferents |
What is Golgi tendon?
Golgi tendon organs (GTOs) are proprioceptors that are located in the tendon adjacent to the myotendinous junction. The Golgi tendon organ is a tree-like sensory ending enclosed in a spindle-like connective tissue capsule, that lies near the junction of a tendon with a muscle.
What is tendon reflex?
Tendon reflexes are single synapse reflexes. A rapid stretch of the muscle stimulates the muscle spindles and this message is conveyed via the sensory root to the spinal cord at the segmental level of the muscle stimulated.
What causes Golgi tendon reflex?
When the organs are stimulated by a prolonged stretch they cause the stretched muscle to relax. This reflex, which connects high force in the Golgi tendon organs with relaxation, is the opposite of the myotatic reflex (or stretch reflex), in which stretch elicits a reflex contraction.
What is Golgi tendon organ?
The Golgi tendon organ is a tree-like sensory ending enclosed in a spindle-like connective tissue capsule, that lies near the junction of a tendon with a muscle. In man, some 10 to 20 muscle fibres are connected to one tendon organ. A typical tendon organ in limb muscles has an ending of about 0.5 mm in length.
What is the tendon reflex?
What is the function of the Golgi tendon?
Function Of The Golgi Body. The Golgi body is primarily responsible for the individual packaging and transport of proteins that are synthesized by the endoplasmic reticulum. Once a protein is created in the endoplasmic reticulum, it is sealed in a vesicle and sent to the Golgi body. The vesicle bonds to the cis-face of the organelle,…
How does the Golgi tendon organ sense forces?
Sensors in the tendon, the Golgi tendon organ, are activated upon stretch of the tendon, which requires considerable force. These sensors synapse on interneurons in the spinal cord that inhibit further activity of the motor neurons innervating the muscle. This relaxation of the muscle prevents damage from excess force.
Is the Golgi body an organelle?
The Golgi apparatus, also known as the Golgi complex, Golgi body, or simply the Golgi, is an organelle found in most eukaryotic cells. It was identified in 1897 by the Italian scientist Camillo Golgi and named after him in 1898. Part of the endomembrane system in the cytoplasm, the Golgi apparatus packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination.
What are the Golgi tendon organs?
Golgi Tendon Organ. Golgi tendon organs (GTOs) are receptors that are activated by stretch or active contraction of a muscle and that transmit information about muscle tension. Activation of these receptors results in a reflex inhibition of the muscle via the inverse myotatic reflex.7 GTOs are located in the tendons,…