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प्रश्न
Explain the Term:
Synapse
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उत्तर
Synapse is the junction or small gap between two adjoining nerve cells (neurons), specifically between the axon terminal of one neuron and the dendrite or cell body of the next. The nerve cells do not physically touch; instead, the synapse allows the transmission of nerve impulses chemically.
संबंधित प्रश्न
Electrical impulse travels in a neuron from:
| The organ A which is located inside the skull of our body is protected by a bony box B and it is surrounded by three membranes C. The space between the membranes is filled with a liquid D which protects the organ A from mechanical shocks. The organ A in combination with another organ E makes up the central nervous system. |
- What is organ A?
- What are B, C and D?
- Name the organ E.
- While walking barefooted, if we happen to step on a sharp piece of stone, we immediately lift our foot up. Which of the two organs, A or E, is directly involved in this action?
- If we step out from a darkened room into bright sunshine, we close our eyes for a moment. Which of the two organs, A or E, is directly involved in this action?
Multiple choice question. Tick (✓) the correct choice:
The coloured part of the eye is called
- retina
- iris
- lens
- pupil
State whether the following statement is true (T) or false (F):
The largest part of the brain is the cerebrum.
Plants do not have any nervous system but yet, if we touch a sensitive plant, some observable changes take place in its leaves. Explain how could this plant respond to the external stimuli and how it is communicated.
Mention, if the following statement is True or False
The nerve impulse in the eye develops due to the chemical changes brought about in the sensitive cells (rods and cones) by the light energy of the image.
What is the function of the red nucleus?
Answer the following question.
Describe the nervous system of cockroach.
List out the functions of Endocrine system and Nervous system.
Mohan is fond of playing basketball. His concentration is on shooting the ball into the opponent's basket as given in the picture.
- Which part of the brain helps Mohan to concentrate in putting the ball into the basket?
- Name the sense organ that helps to gauge the distance between the ball and the basket.
- Name the part of the brain that co-ordinates all the voluntary muscles of his body.
