Have the patient repeat this movement with the other foot. An inability to perform this motion in a relatively rapid cadence is abnormal. The heel to shin test is a measure of coordination and may be abnormal if there is loss of motor strength, proprioception or a cerebellar lesion. If motor and sensory systems are intact, an abnormal, asymmetric heel to shin test is highly suggestive of an ipsilateral cerebellar lesion.
Auxins promote stem elongation, inhibit growth of lateral buds (maintains apical dominance). They are produced in the stem, buds, and root tips. Example: Indole Acetic Acid (IA). Auxin is a plant hormone produced in the stem tip that promotes cell elongation.
Auxin not only elongates cells, but it specifically elongates them in response to the environment. In response to light, auxin will elongate cells on the dark side of a stem so that the plant literally bends towards the light source.ust like your body, plants have a variety of hormones, and auxins are a specific group of hormones that make plant cells grow. Auxins are not only critical to plant growth, but they were also the first class of plant hormones to be discovered.