Paresis refers to a weakness or incomplete paralysis of a muscle or group of muscles. It can be caused by a variety of factors, including:
* Damage to the nervous system: This can be due to stroke, spinal cord injury, or nerve damage.
* Muscle disease: Conditions like muscular dystrophy can lead to paresis.
* Neurological disorders: Some neurological disorders, such as multiple sclerosis, can cause paresis.
Examples:
* Hemiparesis: Weakness or paralysis on one side of the body.
* Monoplegia: Paralysis of one limb.
* Quadriparesis: Weakness or paralysis of all four limbs.
It's important to note that paresis is different from plegia, which refers to complete paralysis.