Understanding Poliomyelitis

What type of virus is the polio virus classified as?

• Flavivirus

• Enterovirus

• Retrovirus

• Rhabdovirus

Where does the polio virus primarily replicate in the body?

• Liver

• Lungs

• Intestines

• Kidneys

Which theory suggests that the polio virus travels through the blood to reach the spinal cord?

• Direct invasion

• Axonal transport

• Viremia

• Lymphatic spread

What is the primary target of the polio virus in the central nervous system?

• Glial cells

• Interneurons

• Sensory neurons

• Motor neurons

Which part of the spinal cord is primarily affected by the polio virus?

• Posterior horn

• Anterior horn

• Central canal

• Lateral horn

What percentage of polio-infected individuals are asymptomatic?

• 10-15%

• 25-30%

• 50-55%

• 90-95%

What is the primary reason for the spread of polio in areas with poor sanitation?

• Airborne transmission

• Insect bites

• Contaminated water

• Fecal-oral route

What is the term for the body's ability to compensate for damaged neurons by sprouting new axons?

• Axonal degeneration

• Synaptic pruning

• Neurogenesis

• Collateral sprouting

What is Post-Polio Syndrome characterized by?

• Increased muscle strength

• Complete recovery from polio

• Functional deterioration after stability

• Initial infection symptoms

Why do patients with Post-Polio Syndrome experience muscle weakness over time?

• Normal aging process of neurons

• Improper diet

• Reinfection with polio

• Increased physical activity