Which Alternative Is the Definition of the Amniotic Sac

question 103

Multiple Choice

Which alternative is the definition of the amniotic sac

• A)A structure that transfers material to the fetus
• B)A fluid-filled reservoir that acts as a cushion and temperature regulator
• C)A fluid-filled reservoir that reduces the transfer of teratogens.
• D)An organ that allows the exchange of nutrients with the mother

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Definitions:

Scanning Objective

A lens system in microscopes used to achieve a high resolution image of a small area at high magnification.

Field Diameter

The overall size of the area visible through a microscope or telescope at a particular magnification.

Low-Powered Objective

An objective lens on a microscope with a relatively low magnification power, used for initial scanning and location of specimen details.

Scanning Objective

A low-power objective lens on a microscope used to scan the whole slide to find the specimen before using higher magnification.