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The suffix-oplastyrefers to the surgical repair or reconstruction of a part of the body. This term is commonly used in procedures such as rhinoplasty (surgical repair of the nose) and angioplasty (surgical repair of blood vessels). The other suffixes have different meanings:

-orrhaphy: Refers to surgical suturing.

-ocentesis: Refers to surgical puncture to remove fluid.

-opexy: Refers to surgical fixation or attachment.

Hydrochloric acid (HCl)is a substance produced by the stomach lining. It plays a crucial role in digestion by creating an acidic environment, which helps in the breakdown of food, activates digestive enzymes like pepsin, and kills harmful bacteria ingested with food. The other options are:

Glycogen: A stored form of glucose found in the liver and muscles, not directly involved in digestion.

Insulin: A hormone produced by the pancreas that regulates blood glucose levels, not involved in digestion in the stomach.

Glucose: A simple sugar that is an end product of carbohydrate digestion, not a substance produced by the stomach.

The most common bacteriology stain is the Gram stain. The Gram stain differentiates bacterial species into Gram-positive and Gram-negative groups based on the composition of their cell walls. This staining technique is crucial in microbiology for identifying and classifying bacteria, guiding antibiotic treatment decisions.

References:

Bailey & Scott's Diagnostic Microbiology by Patricia Tille

Medical Microbiology by Patrick R. Murray

The opposite ofsuperficialisdeep. In medical terminology, "superficial" refers to structures near the surface of the body, while "deep" refers to structures further away from the surface and closer to the interior of the body. For example, muscles that are deep are located beneath more superficial layers of tissue.Reference:Nationally Registered Certified Medical Assistant study materials, anatomy and physiology textbooks.