Compare and contrast nervous and hormonal mechanisms for control and coordination in animals.
Solution and Explanation
Nervous System Mechanism | Hormonal system mechanism | ||
|---|---|---|---|
1. | The information is conveyed in the form of electric impulse. | 1. | The information is conveyed in the form of chemical messengers. |
2. | The axons and dendrites transmit the information through a coordinated effort. | 2. | The information is transmitted or transported through blood. |
3. | The flow of information is rapid, and the response is quick. | 3. | The information travels slowly and the response is slow. |
4. | Its effects are short lived. | 4. | It has prolonged effects. |
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Concepts Used:
Human Nervous System
The human nervous system is responsible for controlling and coordinating all the activities of the human body.
The three major functions of the human nervous system are:
- Gathering or assembling sensory information from the body and external environment.
- Processing and interpreting the sensory information acquired.
- Conveying or transferring appropriate response to the sensory information acquired.
The nervous system is mainly divided into two, namely:
The Central Nervous System (CNS) comprises the brain and spinal cord.
- The brain is majorly involved in the perception and processing of sensory input. It also regulates or manages voluntary motor responses and homeostatic mechanisms.
- The spinal cord act as a pathway for the transmission of information between the brain and the peripheral nervous system. It also takes action on reflex actions.
The Peripheral Nervous System (PNS) comprises sensory/motor neurons and ganglion.