The physical foundation of the body consisting of bones connected by joints is the _____.

• A. Muscular System
• B. Nervous System
• C. Endocrine System
• D. Skeletal System

Answer: (D)

The Skeletal System forms the body’s framework, made up of bones connected by joints that give shape, support weight, and protect internal organs. This system is the physical foundation itself—bones provide structure, and joints hold them together to allow movement. Other systems, like the muscular system, nervous system, and endocrine system, relate to function (movement, signaling, and hormone regulation) but do not serve as the body’s structural framework in the way bones tied together by joints do.