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Where are somatic motor neurons located?
in the CNS
A reflex pathway having only one synapse in the CNS?
Reflexes are rapid involuntary responses to a given stimuli. The reflex pathway that only has one synapse in the CNS is called the monosynaptic reflex arc.
The simplest level of CNS function is the?
The simplest level of CNS function is the reflex arc. It involves a sensory neuron detecting a stimulus and sending a signal to the spinal cord, which then immediately sends a signal back through a motor neuron to produce a response, without involving the brain.
How do visceral reflex arcs differ from somatic?
An autonomic reflex arc is similar to the somatic kind, but differs principally in the motor output side. The sensory side is similar in that a transducer sends a signal via a nerve fiber into the CNS. As with the somatic arc, this sensory fiber is associated with a pseudo-unipolar neuron in a craniospinal ganglion, usually one of the dorsal root ganglia. In the autonomic arc, the sensory transducer is often located in or associated with visceral organs.
How many neurons are used outside the CNS in the somatic nervous system?
one
What is the only thing complete within the CNS from the reflex arc?
only the Interneuron
Where are somatic neurons located?
in the CNS
Last step of a reflex arc?
PNS delivers motor response from CNS to effectors...
How does alcohol spread through the body?
through the CNS as alcohol is a CNS depressant.
Neurons that carry signals from the CNS to skeletal are part?
Neurons that carry signals from the central nervous system (CNS) to skeletal muscles are known as somatic motor neurons. These neurons are responsible for controlling voluntary movements of the body by transmitting signals that stimulate muscle contractions.
What structure detects the stimulus in the reflex action?
The stimulus is detected by temperature or pain receptors in the skin. These generate impulses in sensory neurons. The impulses enter the CNS ( Central nervous system ) through a part of the spinal nerve called the Dorsal root.
What type of reflex operates independently of the cns?
The simplest type of reflex that operates independently of the central nervous system is a monosynaptic reflex involving a single synapse between sensory and motor neurons in the spinal cord. This reflex arc allows for a rapid response to a stimulus without requiring input from the brain.
