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monsynaptic reflex arcs
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∙ 10y ago
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What kind of reflex uses just two neurons?
monosynaptic reflex arcs
Does visceral reflex arcs have two sensory neurons?
No, it has 2 visceral motor neurons. A visceral reflex has a receptor, a sensory neuron, a processing center, and 2 visceral motor neurons.
The simplest pathway of an inpulse is what?
A simple reflex arc that only involves two neurons; these are usually found in the digestive system.
what type of reflex is the knee?
The knee reflex is also called the knee-jerk reflex by tapping the patellar tendon with a reflex hammer. This sends sensory information to the spinal cord at L4 and motor information back to the Quadriceps in the thigh (relaxing the hamstrings). This is reflex requires only two neurons. No interneuron. And so is very rapid. It is important in balance and posture.
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.
What is an advantage of a spinal reflex if you touch a hot stove?
It is hard to choose an answer as you give no "following". As far as these reflexes go, they involve only two neurons. One for sensation (heat) and one for motor (pull away). This is the fastest type of reflex and prevents the most damage. A third signal goes to the brain as a "report".
What is the pathway called that signals travel along during a reflex?
Sensory neurons which trigger reflexes are called nociceptive neurons. After entering the dorsal root of the spinal cord, the nociceptive neuron branches into two terminals: one terminal synapses with an interneuron - a localised neuron which is located entirely within the grey matter of the spinal cord, and this in turn synapses with a motor neuron which then triggers the fast reflex action. The reflex is initiated solely within the spinal cord & doesn't involve the brain at all, but at the same time, the second branch of the nociceptive neuron synapses with a sensory neuron which goes to the brain; the brain then registers the sensation of pain, and can also initiate further motor action if necessary.
What are neurons with two processes classified as?
Neurons with two processes are classified as bipolar neurons.
What are the only two types of cells that have excitable membranes?
neurons and muscle cells
How many efferent neurons are used in a somatic action potential?
The autonomic reflex contains two. (preganglionic and postganglionic)
What are two parts of the peripheral nervous system?
sensory neurons and motor neurons
What is the point called where two neurons meet?
The space between two neurons is a synapse.
