From Where Do the Fluids of the Respiratory Tract Originate

question 17

Multiple Choice

From where do the fluids of the respiratory tract originate?

• A) Specialized mucous glands called goblet cells
• B) Lymph fluid drawn across nasal membranes by osmosis
• C) Specialized beta cells in the islets of Langerhans
• D) Cells that produce aqueous humor

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Definitions:

Epidermis

The outermost layer of skin cells in animals or layer of cells in plants, serving as a protective barrier against environmental damage.

Endodermis

Internal plant root tissue forming a boundary between the cortex and the vascular cylinder.

Cortex

In plants, ground tissue bounded by the epidermis and vascular tissue in stems and roots; in animals, outer layer of an organ, such as the cortex of the kidney or adrenal gland.

Vascular Cylinder

The central part of a plant's root system that contains the plant's vascular tissue, including xylem and phloem, for water and nutrient transport.