A Prion Is

question 37

Multiple Choice

A prion is

• A)a type of virus which causes neurodegenerative diseases in humans and animals.
• B)an infective protein that causes encephalitis.
• C)easily destroyed by most disinfectants.
• D)responsible for infections in animals but not humans.
• E)easily transmissible from person to person.

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Definitions:

Expiration

The process of releasing breath or air from the lungs through the respiratory system.

Diaphragm

A large, dome-shaped muscle located at the base of the lungs and thoracic cavity that contracts and relaxes to aid in the breathing process by creating a vacuum that pulls air into the lungs.

Elastic Properties

Characteristics of materials that allow them to stretch and return to their original shape without permanent deformation.

External Intercostal Muscles

The External Intercostal Muscles are a group of muscles found between the ribs that aid in the process of inhalation by elevating the ribcage, expanding the thoracic cavity.