Which of the Following Is Not Associated with Mucosal Surfaces

question 22

Multiple Choice

Which of the following is not associated with mucosal surfaces?

• A)mucus-secreting goblet cells
• B)lysozyme
• C)M cells
• D)white pulp
• E)beating cilia.

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Definitions:

Choroid Plexus

A network of cells lining the ventricles of the brain where cerebrospinal fluid (CSF) is produced, playing a key role in the CSF's production and regulation.

Arachnoid Granulations

Small protrusions of the arachnoid membrane through the dura mater; they allow cerebrospinal fluid to enter the venous system.

Blood-brain Barrier

The blood-brain barrier is a selective barrier that prevents most substances in the blood from entering the brain, protecting it from pathogens and toxins.

Myelin Sheath

Envelope surrounding most axons; formed by Schwann cell membranes being wrapped around the axon.