Plasia refers to the growth or development of cells, tissues or organs. Based on your understanding of prefixes and word roots, which of the following is a possible meaning for the term pulmonary hypoplasia?

• A. Increased lung capacity and gas exchange.
• B. The incomplete development of lung tissue.
• C. Thickening of the tissue surrounding the lungs.
• D. Excessive and uncontrolled growth of lung tissue.

Answer: (B)

Verified step by step guidance

1. Step 1: Break down the term 'pulmonary hypoplasia' into its components. 'Pulmonary' refers to the lungs, and 'hypoplasia' is composed of the prefix 'hypo-' meaning 'under' or 'below normal,' and the root 'plasia' meaning 'growth or development.'
2. Step 2: Understand the prefix 'hypo-' which indicates a deficiency or incomplete aspect, so 'hypoplasia' refers to underdevelopment or incomplete development.
3. Step 3: Combine the meanings: 'pulmonary' (lungs) + 'hypoplasia' (underdevelopment) suggests a condition involving incomplete or insufficient development of lung tissue.
4. Step 4: Compare this interpretation with the answer choices. The phrase 'incomplete development of lung tissue' aligns with the meaning derived from the term components.
5. Step 5: Conclude that 'pulmonary hypoplasia' means the incomplete development of lung tissue, rather than increased capacity, thickening, or excessive growth.