Complex sentence: Ipsilateral paralysis/paresis of the tongue results in contralateral curvature of the tongue (apex toward the unimpaired side of the mouth) i.e., the tongue will point to the affected side.
Split into simpler sentences: Ipsilateral paralysis/paresis of the tongue results in contralateral curvature of the tongue (apex toward the unimpaired side of the mouth). This is another way of saying that the tongue will point to the affected side.