reaction,
response doing something in opposition to another way of doing it that you don't like; "his style of painting was a reaction against cubism"
accommodation reflex reflex changes in the eyes that enable an object to be focused on the retina
babinski,
babinski reflex,
babinski sign extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
yawn,
yawning,
oscitance,
oscitancy an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom; "he could not suppress a yawn"; "the yawning in the audience told him it was time to stop"; "he apologized for his oscitancy"
electrical shock,
electric shock,
shock a reflex response to the passage of electric current through the body; "subjects received a small electric shock when they made the wrong response"; "electricians get accustomed to occasional shocks"
light reflex,
pupillary reflex,
miosis,
myosis reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
mydriasis reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
micturition reflex relaxation of the urethral sphincter in response to increased pressure in the bladder
gag reflex,
pharyngeal reflex normal reflex consisting of retching; may be produced by touching the soft palate in the back of the mouth
plantar reflex flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of 2 years; under 2 years the results should be extension of the toes (Babinski reflex)
rooting reflex reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek
reflex -
Having greater than 180 degrees but less than 360 degrees.
Wikipedia
A reflex action, also known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus. In most contexts, in particular those involving humans, reflex actions are mediated via the reflex arc; this is not always true in other animals, nor does it apply to casual uses of the term 'reflex'.