If the Visual Input to the Cortex Is Cut Off

question 77

Multiple Choice

If the visual input to the cortex is cut off during development:

• A) visual acuity may be permanently degraded if sight is later restored.
• B) cortical neurons that normally respond to visual input will be more sharply tuned to visual stimuli.
• C) areas that normally respond to tactile or auditory stimuli will begin to respond to visual stimuli.
• D) the visual area of the brain will increase in size.

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Definitions:

Fetal Pulmonary Trunk

A major vessel in the developing fetus that carries blood from the heart to the lungs for oxygenation.

Fetal Aorta

The main artery in the fetus that carries blood from the heart to various parts of the body.

Costocervical Artery

An artery that supplies blood to the upper back, neck, and upper ribs.

Intercostal Artery

A group of arteries that run between the ribs, supplying blood to the chest wall and nearby muscles.