Question

directions: match each word part to its correct meaning

column a\t\t\tcolumn b

1. \t -sclerosis\t\t a. to widen or stretch
2. \t ventricul/o\t\t b. hardening
3. \t dilat/o\t\t c. graph
4. \t -graphy\t\t d. ventricle
5. \t coron/o\t\t e. heart

question 3 (5 points)
what is the primary organ of the pulmonary (respiratory) system?
○ a \t heart
○ b \t lungs
○ c \t trachea
○ d \t diaphragm

question 4 (10 points)
what is the main function of the right ventricle?
○ a \t pump blood to the lungs
○ b \t filter blood
○ c \t pump oxygenated blood to the body
○ d \t receive blood from the lungs

Explanation:

First Matching Question

These are medical word parts; match each to its standard definition:

1. -sclerosis is a suffix meaning hardening.
2. ventricul/o is a combining form referring to a ventricle.
3. dilat/o means to widen or stretch.
4. -graphy refers to a graph or recording process.
5. coron/o is the combining form for heart (coronary structures relate to the heart).

The pulmonary (respiratory) system's core organ responsible for gas exchange is the lungs. The heart is circulatory, trachea is a passageway, diaphragm is a respiratory muscle but not the primary organ.

The right ventricle receives deoxygenated blood from the right atrium and pumps it to the lungs for oxygenation. Filtering blood is done by kidneys, pumping oxygenated blood is the left ventricle's role, and receiving blood from lungs is the left atrium's function.

Answer:

1. -sclerosis → b. Hardening
2. ventricul/o → d. Ventricle
3. dilat/o → a. To widen or stretch
4. -graphy → c. Graph
5. coron/o → e. Heart

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Question 3