Skeleton, joints and muscles - Free MCQ Practice Test with solutions,

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

If you injure a ligament, it can take many months for it to recover. This is unlike an injury to a muscle which normally only takes a few days to heal, depending on how bad the injury is and how healthy you are.

The cartilage stops the bones rubbing on each other and wearing away.

The primary function of the skull is to protect the brain from injury.

Calcium and vitamin D are essential for healthy bones. Calcium provides the mineral structure for bones, while vitamin D enhances calcium absorption. These nutrients are found in foods like eggs, milk, and fortified products, and vitamin D can also be synthesized through sunlight exposure.

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.

Tendons are strong connective tissues that attach muscles to bones, enabling movement by transmitting muscle contractions to the skeleton.

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.

This straightens the arm by contracting.

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