Drying of the Eardrum Is Prevented By

question 64

Multiple Choice

Drying of the eardrum is prevented by:

• A)serous fluid from serous glands
• B)sebum from sebaceous glands
• C)cerumen from ceruminous glands
• D)sweat from apocrine glands

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Definitions:

Dendritic Cells

Immune cells that process antigen material and present it on their surface to other cells of the immune system, playing a critical role in triggering adaptive immunity.

Natural Killer Cells

A type of lymphocyte (white blood cell) that plays a major role in the rejection of tumors and cells infected by viruses.

Interferons

A group of signaling proteins made and released by host cells in response to the presence of pathogens, such as viruses, bacteria, or tumor cells.

Antigen-Presenting Cells

Cells that process and present antigens to T-cells to initiate an immune response.