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The value of a reflex action is to survive. For example, if we place our hands on a hot oven. Our reflex would be to take our hand off and register the pain. OR A perfect example would be the rooting reflex. Which helps a breastfed infant find the mother's nipple. Babies display it only when hungry and touched by another person, not when they touch themselves.
Homeostasis :)
The Pupillary Light Reflex and the Corneal Reflex (or Blink Reflex) are two important reflexes because the Light Reflex prevents damage to eye compopents related to over exposure to light and also helps the eye to accommodate visually, when there is less light; The Blink Reflex prevents objects from entering the eye and lubricates the eye. Also, breathing and heart beat are thought to be reflex actions.
It is called a reflex and does not involve the brain, but instead, the spinal cord. So, in effect, the spinal cord can also 'think' and process information, though not quite the level of complexity as the brain, especially the cerebral cortex. But, that is a good thing. If I touch a hot stove, my spinal cord will send out a signal to pull my hand off well before my 'brain' feels the heat. There is a lot of survival value to reflex arcs that are essential to survival that do not include the brain.
reproduction
knee jerk aka patellar reflex is an example of a stretch reflex
knee-jerk reflex
Reflex. Reflexes ensure that a organism responds to an event in a way most likely to result in survival. For example, when touching a hot surface, most people will immediately jerk their hand away.
a reflex ia an example of an instinctive response
In order to survive they killed a bear for food.
Reflex action is your body's reflex against injury. It is needed in every part of your body.
The coughing reflex kicks in, only if the epiglottis reflex fails to. If the coughing reflex fails then the Heimlich maneuver may be needed.
Patellar reflex is an involuntary, deep tendon and myotatic reflex
Reflex
Stretch reflex that helps keep your knees from buckling
knee jerk aka patellar reflex is an example of a stretch reflex
knee jerk reflex