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.
Auxins are hormones that stimulate growth and are produced in immature parts of plants. They were the first group of hormones studied in plants. Cytokinins are chemicals produced in the roots which stimulate growth and have anti-aging effects. Florists often use cytokinins to keep cut flowers alive and beautiful. Gibberellins are hormones produced in meristems of stems and roots that help regulate stem elongation.