The Blind Spot

question 88

Multiple Choice

The blind spot

• A) is the point on the retina at which the optic nerve leaves and blood vessels pass through.
• B) contains no rods or cones.
• C) is in the exact center of the retina.
• D) both (a) and (b) above.
• E) all of these answers.

---

Definitions:

Folic Acid

A B-vitamin essential for cell growth and metabolism, important for the production of DNA and RNA, and crucial for preventing birth defects during pregnancy.

Calcium

A chemical element and essential nutrient that is crucial for many bodily functions, including bone health and nerve transmission.

Iron

A chemical element with symbol Fe and atomic number 26, essential for human health as it plays a critical role in oxygen transport and metabolic processes.

Teratogens

Agents, such as chemicals or viruses, that can cause birth defects or abnormalities in a developing fetus when exposed to them during pregnancy.