At What Gestational Age Does the Terminal Sac Period Begin

question 13

Multiple Choice

At what gestational age does the terminal sac period begin?

• A) 24 weeks
• B) 22 weeks
• C) 20 weeks
• D) 26 weeks

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Definitions:

Perceptual Constancy

The brain's ability to recognize objects as remaining the same despite changes in distance, viewpoint, or lighting conditions.

Linear Perspective

A technique in visual art, particularly drawing and painting, to create the illusion of depth and distance on a flat surface, using converging parallel lines.

Opponent-Process Theory

A psychological and neurological model that explains how the perception of colors is controlled by the operation of opposing neural systems.

Afterimages

Visual illusions that continue to appear in one's vision after the exposure to the original image has ceased.