The mouth, nose, and other body orifices are lined with ___________________, which secrete a watery substance and provide a protective barrier against harmful agents.

A. germinal cells
B. melanin granules
C. mucus membranes
D. sebaceous glands


Answer: C. mucus membranes

Health Professions

You might also like to view...

The development of ____________________ as an adult is often caused by decreased blood flow to the pituitary, tumor compression of the pituitary, subarachnoid hemorrhage, traumatic brain injury, inflammation of the pituitary gland, or (in women) necrosis of the pituitary after childbirth.

Fill in the blank(s) with the appropriate word(s).

Health Professions

The quantitative term in chemistry related to Avogadro's number of particles of a substance is:

A. mass number. B. atomic number. C. proton number. D. mole.

Health Professions

As you are attempting to resuscitate an adult man with cardiac arrest, you receive a "o shock advised" message from the AED. What should you do next?

A. continue CPR B. Check for a pulse C. Assess for breathing D. Reanalyze the rhythm

Health Professions

Which of the following is an example of primary lymphoid tissues?

A) Spleen B) Thalamus C) Thymus D) Tonsils

Health Professions