Test: Skeleton. joints and muscles - Year 8 MCQ

A skeleton is a framework of bones but this is not its job, it is its description

The skeletal system's main functions include providing support and structure, protecting vital organs, enabling movement, producing blood cells, and storing minerals. Transmission of electrical impulses is a function associated with the nervous system, not the skeletal system.

Ball-and-socket joints, such as the shoulder and hip joints, allow for the greatest range of motion in multiple directions (flexion, extension, abduction, adduction, and rotation). They are capable of movement in more planes compared to hinge, pivot, and gliding joints, which are more limited in their range of motion.

Smooth muscle is found in the walls of internal organs and blood vessels. It is responsible for involuntary movements such as peristalsis (in the digestive system) and controlling the diameter of blood vessels. Skeletal muscle is responsible for voluntary movements, cardiac muscle is found only in the heart and is involuntary but has its own characteristics, and striated muscle is a term that can refer to both cardiac and skeletal muscle, but not to smooth