Final answer:
Symptoms of rigidity, stiffness, resting tremor, and masked facies are indicative of Parkinson's disease, a degenerative neurological disorder affecting movement. These include muscle tremor, rigidity, slowness of movement, and postural instability, often leading to difficulty in walking and daily activities.
Step-by-step explanation:
The symptoms of rigidity and stiffness with resting tremor and masked facies are characteristic of Parkinson's disease, a degenerative disorder of the central nervous system. This condition primarily impairs the muscular system and movement. The four cardinal motor signs that define Parkinson's disease include:
- Muscle tremor (shaking), typically occurring in a limb at rest and disappearing during sleep or when the limb is moved voluntarily.
- Muscle rigidity, leading to stiffness and inflexibility.
- Bradykinesia, or slowness of movement.
- Postural instability, which can cause difficulty with balance and coordination.
Other symptoms may include difficulty walking, which develops over time, and in advanced stages, patients often experience dementia and depression. The presence of these symptoms can greatly affect a person's quality of life and ability to perform daily activities.