Video 5 Inverted supinator
The fingers flex when the radius is tapped, but there is no reflex contraction in brachioradialis. The triceps jerk is brisk.
Video 6 Dressing apraxia
The patient gets into a tangle trying to put her jacket back on, having inadvertently pulled the left sleeve inside out.
Video 7 Weakness of trapezius
The right shoulder is depressed, there is limitation of abduction of the right shoulder, the right scapula wings when the arms are pushed against the wall.
Video 8 Weakness of serratus anterior
The right scapula lifts away from the chest wall when the arms are extended at the shoulder.