Home
Class 12
BIOLOGY
Stimulus several times greater than thre...

Stimulus several times greater than threshold stimulus is provided to muscle fibre. It will

A

contract with a larger force

B

contract with a smaller force

C

contract with the same force

D

undergo tetany

Text Solution

Verified by Experts

The correct Answer is:
C
A muscle fibre would contract only when is recevices stimulation of certain intensity called threshold stimulus. Response of a muscle fibre to a stimules is not proportionate to its intensity . It is absent when the intensity is subliminal . Muscle fibre contracts to the maximum whether the stimules has threshold value or supra-liminal value.
Promotional Banner

Similar Questions

Explore conceptually related problems

If a stimulus, several times greater than the threshold stimulus, is provided to a muscle fibre, it will

For most excitable cells, the threshold stimulus is

What will happen when a threshold stimulus is applied at a particular site in neuron?

Consider an amplifier circuit using a transistor.The output power is several times greater than the input power.Where does the extra power come from?

Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus required for the beginning of contraction.

Assertion :- Threshold stimulus is required for propagation of impulse Reason:- Threshold stimulus produce action potential therefore conduction of impulse occur.

What is meant by (a) threshold stimulus, (b) muscle twitch, and (c ) tetanus.

Assertion : Muscle contraction force increases with rise in strength of stimulus. Reason: This is due to increased contraction of individual muscle fibres with increases in stimulus strength.