In research with human patients suffering from Parkinson's disease, fetal nerve cell transplants ________.

A) resulted in only sporadic, temporary improvements in motor control
B) resulted in worsening of motor control
C) improved motor control
D) resulted in no improvement in motor control

Fetal Nerve Cell Transplants

A medical procedure that involves transplanting nerve cells from a fetus into the brain or spinal cord of a patient to treat neurological disorders.

Parkinson's Disease

A neurodegenerative disorder characterized by tremors, stiffness, slowness of movement, and balance problems, resulting from the loss of dopamine-producing brain cells.

Motor Control

The ability of the nervous system to coordinate the movements and actions of the muscles and limbs.