What does the following picture show?
Correct answer: B. Sensory Neuron
- A. Motor Neuron
- B. Sensory Neuron
- C. Interneuron
- D. Nerve
Explanation
The diagram illustrates a sensory neuron. The defining feature is the cell body, which connects to the dendrites via dendron processes. This structure is specific to sensory neurons and is not found in motor neurons, where the cell body directly attaches to dendrites. Interneurons are characterized by processes that are similar in size to the cell body, which is not evident here. Lastly, the term 'nerve' refers to a collection of neurons, whereas the image shows only one neuron.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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