Biology STAAR (State of Texas Assessments of Academic Readiness) Practice Test

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What are the two major components of the skeletal system?

  1. Bones and muscles

  2. Axial and appendicular skeleton

  3. Ligaments and tendons

  4. Cartilage and joints

The correct answer is: Axial and appendicular skeleton

The two major components of the skeletal system are the axial and appendicular skeleton. The axial skeleton includes the bones of the skull, vertebral column, and rib cage, which provide support and protection for the brain, spinal cord, and thoracic organs. The appendicular skeleton consists of the bones of the limbs and the pelvic and shoulder girdles, which facilitate movement and interaction with the environment. Together, these two components play essential roles in the overall structure, function, and mobility of the human body. Understanding the distinction between these components is crucial for comprehending how the skeletal system supports bodily functions and integrates with other systems.

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