Opportunistic Pathogens

question 25

Multiple Choice

Opportunistic pathogens

• A)are able to cause disease in healthy hosts.
• B)have virulence factors that overcome normal defences.
• C)cause damage by releasing toxins.
• D)cause disease only in hosts with weakened immune defences.
• E)always cause systemic infections.

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Definitions:

Nasalis

A facial muscle responsible for the compression of the nasal cartilage.

Facial Nerve

A cranial nerve that controls the muscles of facial expression, taste sensations from the anterior two-thirds of the tongue, and the production of saliva and tears.

Hyoid Bone

A unique U-shaped bone located in the anterior neck, which supports the tongue and provides attachment points for muscles associated with swallowing.

Platysma

A muscle in the neck region that plays a role in facial expression, such as lowering the lower jaw and lip.