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Most reflexes don't have to travel up to your brain to be processed, which is why they take place so quickly. The reflex arc involves the spinal cord, the motor neurons, interneurons, sensory neurons and the effector's muscles. Two common examples of reflex actions are taking your hand away from something sharp and the iris of an eye changing the size of the pupil. What is a reflex action? A reflex action often involves a very simple nervous pathway called a reflex arc. One of the most important function of reflex actions is to make sure that your body isnt in life-threatening situations. A reflex arc starts off with receptors being excited. Get a new mixed Fun Trivia quiz each day … It is independent of the will of the animal. Reflex actions are important because they protect the body from harm. Some reflexes occur only in specific periods of development. The afferent neurons or the sensory neurons carry the stimuli from receptors to the spinal cord. who spoke of a self-organizing nature of the mind’s activity and Plato (400 B.C.) Reflex action: brainly.in/question/2516166. For example, when you accidentally burn your hand while cooking, you instantly jerk it away from the fire or source of heat. Some natural pathways called reflex arcs act in an impulse before the impulse reaches the brain, and this makes a reflex or a reflex action. Also, when a light is shone in one eye, both pupils constrict to prevent damage to the … | EduRev Class 10 Question is disucussed on EduRev Study Group by 155 Class 10 Students. Autonomic reflexes are important for homeostasis; for example, the baroreflex helps to maintain arterial blood pressure relatively constant. Babies are born with several reflex actions that disappear over time but serve a vital function early in life. Reflex actions helps us when we have to make decisions faster and without thinking. Reflexes work faster than thought. The word reflex (from Latin reflexus, “reflection”) was introduced into biology by a 19th-century English neurologist, Marshall Hall, who fashioned the word because he thought of the … Your body makes the reflex action when you touch a plant with sharp thorns, you move your hand away quickly, The body … Reflex action is a rapid, automatic action carried out without the intervention of the will of the animal. A simple reflex arc (monosynaptic) involves a sensory or afferent neuron, an interneuron present within … The first is a reflex arc, which many people know about. They are receptor organs, sensory neurons, nerve center, associated neurons, motor neurons and effector neurons. This is reflex activity. Reflexes are involuntary movements or actions. anilkumarbagli5123 anilkumarbagli5123 19.08.2019 Biology Secondary School Why is reflex action important 1 See answer anilkumarbagli5123 is waiting for your help. Reflexes, or reflex actions, are involuntary, almost instantaneous movements in response to a specific stimulus. Oct 03 2006, 9:03 PM. The knee jerk reflex is a common example of a reflex action, which occurs when the pattelar ligament is tapped. A “reflex” contraction signal is then sent from the spinal cord through a motor nerve, causing the expected jerking of the extremity being tested. In the first example, receptors detect the sharp object cutting into the skin. The reason is simple: Reflexes like knee-jerk or ankle jerk are very simply nerve pathways. It is not surprising therefore to find references to reflex action as far back as the pre socratic greek philosopher anaxagorus 500 b c who spoke of a self organizing nature of the mind s activity and plato 400 b c. 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