Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. The Golgi tendon organs detect stretch in a simple stretch reflex.
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13. The Peripheral Nervous System
Reflex Arcs
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Which type of reflex arc consists of only an afferent neuron and an efferent neuron?
A
Autonomic reflex arc
B
Polysynaptic reflex arc
C
Somatic reflex arc
D
Monosynaptic reflex arc
Verified step by step guidance1
Understand the components of a reflex arc: A reflex arc typically involves a sensory neuron (afferent), a motor neuron (efferent), and sometimes one or more interneurons.
Identify the types of reflex arcs: Reflex arcs can be classified as monosynaptic or polysynaptic based on the number of synapses involved.
Define a monosynaptic reflex arc: A monosynaptic reflex arc involves only one synapse between the afferent neuron and the efferent neuron, meaning there are no interneurons involved.
Compare with other types: A polysynaptic reflex arc involves one or more interneurons, leading to multiple synapses. An autonomic reflex arc involves the autonomic nervous system, and a somatic reflex arc involves the somatic nervous system.
Conclude that a monosynaptic reflex arc consists of only an afferent neuron and an efferent neuron, with a direct synapse between them.
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