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What reflex does a a sensory neuron synapses directly on a motor neuron?
Wiki User
∙ 11y ago
Monosynaptic reflex
Wiki User
∙ 11y ago
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How many synapses occur in this reflex arc?
In a simple reflex arc, there are typically three neurons and two synapses. The sensory neuron carries the signal from the receptor to the central nervous system, where it synapses with the interneuron. The interneuron then synapses with the motor neuron, which carries the signal to the effector organ to produce a response.
The sensory receptor sensory neuron motor neuron and effector involved in a reflex form a?
A reflex arc.
What are the first and last elements in a spinal reflex?
motor neuron and sensory neuron
Which reflex arcs contain no association neuron?
The patellar reflex is an example of a 2-neuron reflex arc. It has 1 sensory neuron and 1 motor neuron. It does not contain an association neuron and so is considered the most simple reflex in humans.
What connects the sensory neurons to motor neurons?
What connects sensory and motor neuron is the impulse called interneuron or connector neuron are connected by means of electrical impulse called synape from sensory to motor neuron.
What occurs during the reflex arc.?
During a reflex arc, a sensory receptor detects a stimulus and sends a signal through a sensory neuron to the spinal cord. The spinal cord then processes the signal and sends a response through a motor neuron to an effector muscle or gland, causing a quick, involuntary reaction without the need for input from the brain.
The sensory receptor sensory neuron motor neuron and effector involved in a reflex form a?
A reflex arc.
A withdrawal reflex employs what neurons?
Withdrawal reflex or flexor reflex employs sensory neuron, interneuron and motor neuron.
What type of neuron begins a reflex arc?
A sensory receptor is the type of neuron that begins a reflex arc.
What is the pathway called that signals travel along during a reflex?
The pathway that signals travel along during a reflex is called a reflex arc. It involves sensory neurons detecting a stimulus, sending a signal to the spinal cord or brain, and then motor neurons carrying a response signal to the muscles.
What are the first and last elements in a spinal reflex?
motor neuron and sensory neuron
Which reflex arcs contain no association neuron?
The patellar reflex is an example of a 2-neuron reflex arc. It has 1 sensory neuron and 1 motor neuron. It does not contain an association neuron and so is considered the most simple reflex in humans.
What connects the sensory neurons to motor neurons?
What connects sensory and motor neuron is the impulse called interneuron or connector neuron are connected by means of electrical impulse called synape from sensory to motor neuron.
How many synapses occur in this reflex arc?
In a simple reflex arc, there are typically three neurons and two synapses. The sensory neuron carries the signal from the receptor to the central nervous system, where it synapses with the interneuron. The interneuron then synapses with the motor neuron, which carries the signal to the effector organ to produce a response.
Why are reflex actions very fast?
The impulse in a reflex action goes directly from the sensory neuron to the inter neuron to the spinal cord, which allows for faster actions.
What is the pathway of an impulse in a reflex arc?
Sensory receptor, sensory neuron, interneuron, motor neuron, and muscle.
You hit your knee a rubber hammer and it jerks?
Striking the patellar ligament with a tendon hammer just below the patella stretches the quadriceps muscles in the thigh. This stimulates stretch sensory receptors (most importantly, muscle spindles) that trigger an afferent impulse in a sensory nerve fiber of the femoral nerve leading to the lumbar region of the spinal cord. There, the sensory neuron synapses directly with a motor neuron that conducts an efferent impulse to the quadriceps femoris muscle, triggering contraction. This contraction, coordinated with the relaxation of the antagonistic flexor hamstring muscle causes the leg to kick. This reflex helps maintain posture and balance, allowing one to walk without consciously thinking about each step. The patellar reflex is a clinical and classic example of the monosynaptic reflex arc. There is no interneuron in the pathway leading to contraction of the quadriceps muscle. Instead the bipolar sensory neuron synapses directly on a motor neuron in the spinal cord' However, there is an inhibitory interneuron used to relax the antagonistic hamstring muscle. http://en.wikipedia.org/wiki/Knee_jerk
