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1. Which of the following structures is responsible for
maintaining the shape and protecting the internal organs of
the human body?
a) Muscular system
b) Skeletal system
c) Respiratory system
d) Nervous system
Answer: b) Skeletal system
Rationale: The skeletal system is responsible for providing
support, protection, and shape to the human body. It
includes bones, cartilage, ligaments, and tendons.
2. The primary function of the circulatory system is to:
a) Facilitate gas exchange in the lungs
b) Coordinate body movements
c) Transport oxygen and nutrients to the body cells
d) Regulate body temperature
Answer: c) Transport oxygen and nutrients to the body
cells
Rationale: The circulatory system consists of the heart,
blood vessels, and blood. Its main function is to transport
oxygen, nutrients, hormones, and waste products
throughout the body.
3. Which of the following structures is responsible for
filtering waste products from the blood?
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