INI-CET 2019 - Physiology PYQs Practice Questions

Q: Golgi tendon organ function is?

Detects the muscle tension. ***Detects the muscle tension*** - The **Golgi tendon organ (GTO)** is a proprioceptor located at the musculotendinous junction, specifically designed to monitor and respond to changes in **muscle tension** or force. - When muscle tension increases, such as during a strong contraction, the GTO sends inhibitory signals to the motor neurons of the same muscle, leading to muscle relaxation and preventing injury (autogenic inhibition). *Detects the dynamic change in muscle length* - This function is primarily attributed to **muscle spindles**, which are specialized sensory receptors that detect changes in the **length** and rate of change of length of a muscle. - Muscle spindles are responsible for the **stretch reflex**, initiating a contraction when a muscle is stretched too quickly. *Detects the muscle stretch* - While GTOs are involved in reflex responses that can follow muscle stretch, their primary role is not to detect the stretching itself, but rather the **tension** that results from that stretch. - **Muscle spindles** are the primary mechanoreceptors responsible for detecting the stretch of a muscle. *Detects the muscle strength* - "Muscle strength" is a broader term referring to the force a muscle can exert, which is controlled by a combination of neural input and muscle fiber characteristics. - While GTOs contribute to the overall proprioceptive feedback regulating muscle force, they specifically detect **tension** rather than directly measuring "strength" as a global concept. [Practice more Physiology PYQs on OnCourse]

Question 1

Golgi tendon organ function is?

Accepted Answer

Detects the muscle tension

Answer

Detects the dynamic change in muscle length

Answer

Detects the muscle stretch

Answer

Detects the muscle strength

Question 2

Arrange the steps of spermatogenesis in the sequence of their formation.

Accepted Answer

Spermatogonium > Spermatocyte > Spermatid > Spermatozoa

Answer

Spermatocyte > Spermatogonium > Spermatid > Spermatozoa

Answer

Spermatogonium > Spermatocyte > Spermatozoa > Spermatid

Answer

Spermatozoa > Spermatogonium > Spermatocyte > Spermatid

INI-CET 2019 — Physiology