Anatomy & Physiology Musculoskeletal #1

Question

Which student statement indicates a correct understanding of the musculoskeletal system of the human body?

Answers

  1. “There are 206 bones in the human body.”
    • Rationale:

      There are 206 bones in the adult human body; therefore, this is a correct student statement.

  2. “The breast bone is an example of a long bone.”
    • Rationale:

      The breast bone is an example of a flat, not long, bone; therefore, this is not a correct student statement.

  3. “Appendicular bones comprise the human skull.”
    • Rationale:

      The appendicular bones are bones that make up the arms, legs, shoulders, and pelvis; therefore, this is not a correct student statement.

  4. “Axial bones make up the upper and lower extremities.”
    • Rationale:

      The axial bones are bones that make up the ribs, skull, and spinal column; therefore, this is not a correct student statement.

Overview

The musculoskeletal system includes two major, yet different subsystems, within the human body. These subsystems are the muscular system and the skeletal system.

Explanation

Learning Outcomes

The two subsystems of the musculoskeletal system include the muscular system and the skeletal system. The human skeletal system for an adult client is composed of 206 bones. These bones can be classified in several different ways. These classifications include the following:
Bone cells: Osteocytes, osteoclasts, osteoblasts, osteogenic cells, lining cells
Bone composition: Spongy bone, cortical bone
Bone layers: Periosteum, endosteum, medullary cavity
Bone location: Axial bones versus appendicular bones
Bone type: Flat bones, long bones, irregular bones.

Test Taking Tip

Ask yourself whether each student statement is true or false. The correct choice for this question is a true statement regarding the musculoskeletal system.

Video Rationale