Final answer:
Nuchal rigidity, Kernig's sign, and Brudzinski's sign are all neurological signs that can indicate specific conditions and diseases.
Step-by-step explanation:
Nuchal rigidity, Kernig's sign, and Brudzinski's sign are all neurological signs that can indicate specific conditions and diseases.
Nuchal rigidity refers to the stiffness and resistance to flexion of the neck, often seen in patients with meningitis or other infections of the meninges.
Kernig's sign is a test performed on patients suspected of having meningeal inflammation. It is positive if the patient experiences resistance or pain in the leg when the knee is extended from a flexed position while the hip is also flexed.
Brudzinski's sign is another test used to evaluate for meningitis. It is positive if flexing the neck causes involuntary flexion of the hips and knees.