What Is the Main Pathological Feature of Prion Diseases

question 30

Multiple Choice

What is the main pathological feature of prion diseases?

• A) Death of cells in the substantia nigra
• B) Spongiform encephalitis
• C) Amyloid plaques
• D) Neurofibrillary tangles
• E) The presence of Lewy bodies
• F) Overexpression of presenilin

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Definitions:

Arrector Pili Muscles

Small muscles attached to hair follicles that cause hair to stand upright (as in "goosebumps") in response to cold or fear.

Sebaceous Glands

Sebaceous glands are small oil-producing glands in the skin that release sebum into hair follicles, lubricating hair and the surface of the skin.

Lamellated Corpuscle

A type of nerve ending in the skin that is sensitive to pressure and vibration, also known as a Pacinian corpuscle.

Tactile Corpuscle

Sensory receptors within the dermis layer of the skin, specifically designed to detect fine touch and texture sensation through mechanical stimulation.