Skeletal System in Humans

What is the primary function of the skeletal system in humans?

• To provide support and shape to the body

• To produce blood cells

• To protect internal organs

• All of the above

How many bones are there in the human skull as part of the axial skeleton?

• 22 bones

• 29 bones

• 32 bones

• 18 bones

What is the outermost layer of a bone called?

• Marrow

• Spongy bone

• Periosteum

• Endosteum

What is the primary function of red bone marrow?

• Storage of minerals

• Production of blood cells

• Storage of fat

• Structural support

What is the initial composition of the human skeleton at the beginning of development?

• Entirely of bones

• Mostly of cartilage

• Entirely of minerals

• Mostly of blood vessels

During which life stage do bones continue to elongate as bone cells replace the cartilage?

• Infancy

• Early childhood

• Adolescence

• Adulthood

What is the function of cartilage in joints?

• To increase friction between bones

• To connect muscles to bones

• To cushion the ends of bones

• To produce red blood cells

Which type of joint allows for little or no movement?

• Freely movable joints

• Slightly movable joints

• Immovable joints

• Elastic joints

What structures hold bones together at joints?

• Tendons

• Muscles

• Ligaments

• Cartilage

Which joint allows for bending and straightening movements?

• Ball and socket joint

• Pivot joint

• Hinge joint

• Saddle joint