Write down the following activities in the correct order for a simple reflex arc: 1. Impulse travels in the motor fibre. 2. Impulse travels in the sensory fibre. 3. Effector organ stimulated. 4. Impulse crosses the synapse.

Write down the following activities in the correct order for a si…

Question

Write down the following activities in the correct order for a simple reflex arc:

Impulse travels in the motor fibre.
Impulse travels in the sensory fibre.
Effector organ stimulated.
Impulse crosses the synapse.

✓

Answer

The pathway taken by nerve impulses in a reflex action is called a reflex arc. It is an automatic response to a stimulus. When a stimulus is given to a receptor, the receptors produce an impulse in the sensory fibre. The sensory fibre carries this message in the form of an electrical stimulus across the synapse. From the synapse, the impulse travels in the motor fibre and stimulates the effector organ to produce the desired response. The correct order for a simple reflex arc is:
(b) → (d) → (a) → (c).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions: [5 M]" from Control and Coordination→Control and Coordination — all question types→Science STD 10 question papers→Maharashtra Board STD 10 question papers→Maharashtra Board question paper generator→

Similar questions

Suggest some measures at individual level, a person can follow to protect the environment

→

Sodium is always kept in kerosene.

→

A filamentous alga X is found in ponds, lakes and slow-moving streams. The filament of this alga simply breaks into two (or more) pieces on maturing and each piece then grows to become a complete new alga.

Name an alga which X is likely to be.
What is the colour of X?
What is the method of forming new algae by the breaking of parent alga known as?
An Amoeba also breaks up to form two daughter Amoebae. What is the difference in the splitting of Amoeba and splitting of this alga as a method of reproduction?
Name one marine animal which reproduces in the same way as alga X.

→

Describe some experiment to show that the magnetic field is associated with an electric current.

→

Asexual reproduction	Sexual reproduction
1. Reproduction that occurs with the help of somatic cells is called asexual reproduction.	1. ___________________________
2. ___________________________	2. Male and female parent are necessary for sexual reproduction.
3. This reproduction occurs with the help of mitosis only.	3. ___________________________
4. ___________________________	4. New individual formed by this method is genetically different from parents.
5. Asexual reproduction occurs in different individuals by various methods like binary fission, multiple fission, budding, fragmentation, regeneration, vegetative propagation, spore production, etc.	5. ___________________________