When a reflex arc consists of only two neurons in an animal (one sensory neuron, and one motor neuron), it is defined as monosynaptic.Monosynaptic refers to the presence of a single chemical synapse.
To maintain simplicity, only two or three neurons are involved in a reflex arc. The reflex arc is made up of five basic elements. These include the receptor, the sensory neuron, center, the motor neuron, and the effector. The receptor hosts the dendrite of the sensory neuron as well as the initiation of the entire process, the initiation of nerve impulse. Answers. Best Answer: A reflex arc refers to the neural pathway that a nerve impulse follows. The reflex arc typically consists of five components (3): 1. The receptor at the end of a sensory neuron reacts to a stimulus. 2. The sensory (afferent) neuron conducts nerve impulses along an afferent pathway towards the central nervous system (CNS). 3. The integration center consists of one or more synapses in the CNS. 4. A motor (efferent) neuron conducts a nerve impulse along an efferent pathway from the integration center to an effector This characteristic allows reflex actions to occur relatively quickly by activating spinal motor neurons without the delay of routing signals through the brain, although the brain will receive sensory input while the reflex is carried out. Analysis of the signal takes place after action has been taken. There are two types of reflex arc: autonomic reflex arc (affecting inner organs) and somatic reflex arc (affecting muscles). SEARCH. A receptor, a sensory neuron, a motor neuron, The motor neuron’s innervation of the peripheral nervous system, and at least one association neuron from the central nervous system are the ingredients to a conduction passageway of the reflex arc. The reflex arc is made up of five basic elements. These include the receptor, the sensory neuron, center, the motor neuron, and the effector. The receptor hosts the dendrite of the sensory neuron as well as the initiation of the entire process, the initiation of nerve impulse. The Stretch Reflex : (See Figure 13.15). The stretch reflex in its simplest form involves only 2 neurons, and is therefore sometimes called a 2-neuron reflex. The two neurons are a sensory and a motor neuron. The sensory neuron is stimulated by stretch (extension) of a muscle. Stretch of a muscle normally happens when its antagonist contracts, or artificially when its tendon is stretched, as in the knee jerk reflex.  Therefore a basic reflex arc consists of sensory cells and their associated nerve fibers, motor nerve fibres and the ultimate muscle or gland. Some reflex arcs can include a coordination centre within the spinal cord or brain prior to stimulation of the motor nerve.  When a reflex arc consists of only two neurons in an animal (one sensory neuron, and one motor neuron), it is defined as monosynaptic. Monosynaptic refers to the presence of a single chemical synapse. There are two types of reflex arc: autonomic reflex arc (affecting inner organs) and somatic reflex arc (affecting muscles). Describe Monosynaptic reflex: When a reflex arc consists of only two neurons in an animal (one sensory neuron, and one motor neuron), it is defined as monosynaptic. Monosynaptic refers to the presence of a single chemical synapse. in polysynaptic reflex pathways, one or more interneurons connect afferent (sensory) and efferent (motor) signals. All but the most simple reflexes are polysynaptic, allowing processing or inhibition of polysynaptic reflexes within the spinal cord. A reflex arc is a neural pathway that controls a reflex action. In higher animals, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. There are two types of reflex arc: autonomic reflex arc (affecting inner organs) and somatic reflex arc (affecting muscles).
http://www.medicalook.com/human_anatomy/organs/Reflex_arc.html https://answers.yahoo.com/question/index?qid=20091124145904AAMKlP4 https://en.wikipedia.org/wiki/Reflex_arc http://www.medicalook.com/human_anatomy/organs/Reflex_arc.html http://www.unm.edu/~jimmy/reflexes_notes.htm http://en.wikivet.net/Reflex_Arcs_-_Anatomy_%26_Physiology https://en.wikipedia.org/wiki/Reflex_arc https://quizlet.com/4584065/reflex-sensation-flash-cards/ https://en.wikipedia.org/wiki/Reflex_arc
describe a reflex arc that consists of two neurons