Monosynaptic reflex arc consists of:
Correct answer: C. Two neurons, One sensory neuron, and one motor neuron
- A. One sensory neuron only
- B. One motor neuron only
- C. Two neurons, One sensory neuron, and one motor neuron
- D. None of these
Explanation
The correct option is C. When a reflex arc consists of only two neurons, one sensory neuron and one motor neuron, it is defined as monosynaptic. It allows for direct communication between sensory and motor neurons, resulting in muscle stimulation. A common example of a monosynaptic reflex is the knee-jerk reflex.
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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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