Nervous Mechanisms (рддрдВрддреНрд░рд┐рдХрд╛ рддрдВрддреНрд░): Involve the transmission of electrical impulses through neurons, providing fast and precise control of body functions. They are responsible for immediate responses.
Hormonal Mechanisms (рд╣рд╛рд░реНрдореЛрдирд▓ рддрдВрддреНрд░): Involve the release of hormones into the bloodstream by endocrine glands, providing slower but sustained regulation of physiological processes. They are responsible for long-term responses.
Comparing Nervous and Hormonal Control and Coordination in Animals
| Feature | Nervous System | Hormonal System |
|---|---|---|
| Signaling molecule | Electrical impulses (neurotransmitters) | Chemical messengers (hormones) |
| Pathway | Neurons (point-to-point) | Bloodstream (widespread) |
| Speed of response | Fast (milliseconds) | Slow (seconds to hours) |
| Duration of response | Short-lived (milliseconds to minutes) | Long-lasting (minutes to days or longer) |
| Target cells | Specific (targeted neurons or muscles) | Widespread (cells with matching receptors) |
| Specificity | High | Can be high or broad depending on hormone |
| Control | Conscious (voluntary) and unconscious (involuntary) | Unconscious (involuntary) |
| Examples | Muscle movement, sensory perception, reflexes | Growth, development, metabolism, reproduction |
Example: рддрдВрддреНрд░рд┐рдХрд╛ рддрдВрддреНрд░ рддреНрд╡рд░рд┐рдд рдкреНрд░рддрд┐рдХреНрд░рд┐рдпрд╛ рдкреНрд░рджрд╛рди рдХрд░рддрд╛ рд╣реИ рдЬреИрд╕реЗ рдХрд┐ рдЬрдм рдЖрдк рдбрд░рддреЗ рд╣реИрдВ, рдЬрдмрдХрд┐ рд╣рд╛рд░реНрдореЛрдирд▓ рддрдВрддреНрд░ рджреАрд░реНрдШрдХрд╛рд▓рд┐рдХ рдкреНрд░рдХреНрд░рд┐рдпрд╛рдУрдВ рдХреЛ рдирд┐рдпрдВрддреНрд░рд┐рдд рдХрд░рддрд╛ рд╣реИ рдЬреИрд╕реЗ рдХрд┐ рд╡реГрджреНрдзрд┐ рдФрд░ рд╡рд┐рдХрд╛рд╕ред
Other Question Answers ЁЯХ╡я╕Пof Control and Coordination Make Notes тЬТя╕П
- What is the difference between a reflex action and walking?
- What happens at the synapse between two neurons?
- Which part of the brain maintains posture and equilibrium of the body?
- How do we detect the smell of an agarbatti (incense stick)?
- What is the role of the brain in reflex action?
- What are plant hormones?
- How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?
- Give an example of a plant hormone that promotes growth.
- How do auxins promote the growth of a tendril around a support?
- Design an experiment to demonstrate hydrotropism.
- How does chemical coordination take place in animals?
- Why is the use of iodised salt advisable?
- How does our body respond when adrenaline is secreted into the blood?
- Why are some patients of diabetes treated by giving injections of insulin?
- Which of the following is a plant hormone?
- The gap between two neurons is called a
- The brain is responsible for
- What is the function of receptors in our body? Think of situations where receptors do not work properly. What problems are likely to arise?
- Draw the structure of a neuron and explain its function.
- How does phototropism occur in plants?
- Which signals will get disrupted in case of a spinal cord injury?
- How does chemical coordination occur in plants?
- What is the need for a system of control and coordination in an organism?
- How are involuntary actions and reflex actions different from each other?
- Compare and contrast nervous and hormonal mechanisms for control and coordination in animals.