Question

Control and coordination answers

Answer 1

Answer:

brain

Explanation:

Answer 2

. What is the difference between reflex action and walking?

. What is the difference between reflex action and walking?Ans. Reflex action takes place without thought, i.e., it gives a reaction to stimuli. It is controlled by the spinal cord. It is an involuntary action. Walking takes place after thought, i.e., according to our wishes. It is controlled by a part of hind brain called cerebellum. It is a voluntary action.

2. What happens at the synapse between two neurons?

2. What happens at the synapse between two neurons?Ans. Synapse is the gap between nerve ending of one neuron and dendrites of another. At synapse, the electrical impulse generated at dendrites of a neuron is passed on to dendrite of another neuron in the form of chemicals by on ending of the first neuron. Synapse ensures that nerve impulse travels only in one direction. A similar synapse allows the delivery of impulse from the neuron to the other cells, like muscle cells.

3. Which part of the brain maintains posture and equilibrium of the body?

3. Which part of the brain maintains posture and equilibrium of the body?Ans. Cerebellum, which is a part of the hind brain.

4. How do we detect the smell of an agarbatti (incense stick)?

4. How do we detect the smell of an agarbatti (incense stick)?Ans. Smell of an incense stick is detected by the olfactory receptors located in the fore-brain.

5. What is the role of brain in reflex action?

5. What is the role of brain in reflex action?Ans. Spinal cord is made up of nerves which supply information to think about. Thinking involves more complex mechanisms and neural connections. These are concentrated in the brain, which reacts to the stimuli and is the main coordinating center of the body. The brain and spinal cord constitute the central nervous system. They receive information from all parts of the body and integrate it. Hence, brain plays an important role in reflex action.

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