By Which Period of Prenatal Development Will the Placenta Be

question 16

Multiple Choice

By which period of prenatal development will the placenta be fully formed?

• A) embryonic period
• B) pre ^-embryonic period
• C) infancy
• D) fetal period

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Definitions:

Phase-Contrast

A microscopy technique that converts phase shifts in light passing through a transparent specimen to brightness changes in the image.

Confocal Fluorescence

A microscopy technique that uses laser light to illuminate a fluorescently labeled sample at specific depths, generating sharp images of structures within cells and tissues.

Transmission Electron

A microscopy technique in which a beam of electrons is transmitted through a specimen to form an image, providing high-resolution views of ultrastructural details.

Scanning Electron

Microscopy technique that uses a focused beam of electrons to scan the surface of a specimen, producing high-resolution images to visualize surface details.