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What are reflex acts in nervous system?

What are reflex acts in nervous system?

Nervous system – Reflexes A reflex action often involves a very simple nervous pathway called a reflex arc. A reflex arc starts off with receptors being excited. They then send signals along a sensory neuron to your spinal cord, where the signals are passed on to a motor neuron.

What nervous system controls motor reflexes?

the somatic nervous system
The primary function of the somatic nervous system is to connect the central nervous system to the body’s muscles to control voluntary movements and reflex arcs.

Which part of the nervous system is responsible for the reflex actions?

somatic nervous system
Reflexes: involuntary movements In addition to regulating the voluntary movements of the body, the somatic nervous system is also responsible for a specific type of involuntary muscle responses known as reflexes, controlled by a neural pathway known as the reflex arc.

How are reflexes related to the nervous system?

Reflexes 1 Reflexes, or reflex actions, are involuntary, almost instantaneous movements in response to a specific stimulus. 2 Reflex arcs that contain only two neurons, a sensory and a motor neuron, are considered monosynaptic. 3 Monosynaptic refers to the presence of a direct single synapse; no interneuron is present.

How is the central nervous system responsible for the motor response?

The central nervous system interprets the sensory information and determines the necessary response. A motor neuron (efferent fibers) carries the response message to the effector (skeletal muscle, non-skeletal. muscle, gland, organ or vascular pathway) responsible for generating the motor response. The effector generates the motor response.

How is the alpha motor neuron involved in the reflex?

Along with the monosynaptic activation of the alpha motor neuron, this reflex also includes the activation of an interneuron that inhibits the alpha motor neuron of the antagonistic muscle. This aspect of the reflex ensures that contraction of the agonist muscle occurs unopposed.

How are peripheral reflexes different from polysynaptic reflexes?

In the case of peripheral muscle reflexes (patellar reflex, achilles reflex), brief stimulation to the muscle spindle results in the contraction of the agonist or effector muscle. By contrast, in polysynaptic reflex arcs, one or more interneurons connect afferent (sensory) and efferent (motor) signals.