In What Area Is Cancer a Significant Public Health Problem

question 39

Multiple Choice

In what area is cancer a significant public health problem?

• A) Mostly in the United States
• B) Mostly in third world countries
• C) Throughout the world
• D) Everywhere except the Eastern European countries

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Definitions:

Osteoblasts

Cells with the principal function to synthesize and secrete the collagen matrix and ground substance of bone tissue, initiating bone formation.

Sarcoplasmic Reticulum

The system of vesicles in a muscle cell that surrounds the myofibrils and releases calcium in muscle contraction; a modified endoplasmic reticulum.

Skeletal Muscle Fibers

The cells of skeletal muscles, characterized by their long, striated appearance and role in voluntary movement.

Myofibrils

Long, filamentous organelles found inside muscle cells that are highly specialized for contraction.