Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. The simple stretch reflex is a monosynaptic reflex with only a single synapse in the spinal cord between the sensory and motor neurons.

검증된 단계별 안내

Understand the definition of a simple stretch reflex: It is a reflex that occurs when a muscle is stretched, leading to its contraction to resist the stretch. This reflex is mediated by the spinal cord.

Recall that a monosynaptic reflex involves only one synapse between the sensory (afferent) neuron and the motor (efferent) neuron in the spinal cord. This is a key characteristic of the simple stretch reflex.

Evaluate the statement: 'The simple stretch reflex is a monosynaptic reflex with only a single synapse in the spinal cord between the sensory and motor neurons.' This aligns with the definition of a monosynaptic reflex, so the statement is true.

If the statement were false, you would need to identify the error and correct it. For example, if it incorrectly stated that the reflex involves multiple synapses, you would correct it to specify that it is monosynaptic.

Conclude that the statement is true as written, and no correction is necessary.

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주요 개념

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Simple Stretch Reflex

The simple stretch reflex, also known as the monosynaptic reflex, is a fundamental neural pathway that involves a direct connection between a sensory neuron and a motor neuron in the spinal cord. This reflex is responsible for the quick response to muscle stretching, such as the knee-jerk reaction, allowing for immediate adjustments in muscle tension.

Monosynaptic Reflex Arc

A monosynaptic reflex arc consists of only one synapse between the sensory neuron and the motor neuron, making it the simplest type of reflex. This structure allows for rapid transmission of signals, resulting in a swift response to stimuli, which is crucial for maintaining posture and balance.

Role of Interneurons

While the simple stretch reflex is monosynaptic, many reflexes involve interneurons, which are neurons that connect sensory and motor pathways. Interneurons can modulate reflex responses and integrate information from multiple sources, leading to more complex reflex actions, such as withdrawal reflexes, which involve multiple synapses.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.a. The simple stretch reflex is a monosynaptic reflex with only a single synapse in the spinal cord between the sensory and motor neurons.