What Feature of the Skin Creates a Physical Barrier to Microbial

question 42

Multiple Choice

What feature of the skin creates a physical barrier to microbial invasion?

• A) The fine hairs move microbes to mucous membranes for phagocytosis.
• B) The outer layers are composed of cells full of protein which forms NETs to trap microbes until they are shed.
• C) The oil secreted onto the surface of the skin traps microbes, preventing penetration.
• D) The surface is constantly patrolled by phagocytic cells.
• E) The outer layers are dead cells, tightly linked together, and are frequently shed.

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Definitions:

Medulla

The lower part of the brainstem, controlling autonomic functions such as heartbeat and breathing.

Pons

A key structure in the brainstem involved in regulating breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance.

Corpus Callosum

A large band of neural fibers connecting the two brain hemispheres and carrying messages between them.

Epilepsy

A neurological condition characterized by unexpected, recurring instances of sensory disruption, unconsciousness, or seizure, linked to unusual electrical brain activity.