This is the inability to extend the hand at the wrist. It is usually due to damage to the radial nerve which supplies the extensor muscles.
A brief episode affecting the nervous system that causes the person to fall suddenly. There is no loss of consciousness. The loss of tone in the muscles, responsible for the fall, may persist for several hours; in such cases moving the patient or applying pressure to the soles of the feet may restore muscle tone. In most cases, however, recovery is immediate. The cause is probably a temporary interference with the blood supply to the brain. In others there may be some disturbance of the vestibular apparatus which controls the balance of the body. (See EAR, DISEASES OF; TRANSIENT ISCHAEMIC ATTACKS OR EPISODES (TIA, TIE).)... drop attack
A condition in which the foot cannot be raised properly and hangs limp from the ankle. Neuritis affecting the nerves that supply muscles that move the foot is a common cause and may be due to diabetes mellitus, multiple sclerosis, or a neuropathy. Weakness in the foot muscles can also result from pressure on a nerve (due to a disc prolapse or a tumour) as it leaves the spinal cord. Treatment is of the underlying cause, but in many people the weakness persists. A lightweight plastic caliper splint can be used to keep the foot in place when walking.... foot-drop