Skeletal System

The bones in our body come in many different shapes and sizes. What is the most likely reason for this?

• Each bone is designed to do a unique job in your body.

• All bones are the same size and shape.

• Bones are made of different materials.

• Bones change shape based on diet.

Which of the following bones has the primary purpose of protecting vital soft organs?

• Rib cage

• Skull

• Femur

• Humerus

The skull, vertebrae, hips, ribs, arms, and legs are major ______ of the human body.

• muscles

• tissues

• bones

• organs

What are the two main types of bone tissue?

• Compact bone and spongy bone.

• Cortical bone and trabecular bone.

• Osteoid bone and lamellar bone.

• Fibrous bone and cancellous bone.

What is the role of the rib cage in the skeletal system?

• To support the head and neck

• To protect the heart and lungs

• To assist in digestion

• To produce blood cells

What connects bones to muscles?

• Ligaments

• Cartilage

• Tendons

• Joints

The skeletal system is a ______ structure that holds the body up and protects the internal organs.

• flexible

• rigid

• soft

• fragile

What connects bones to other bones?

• Tendons

• Cartilage

• Ligaments

• Muscles

Which is a major difference between human bodies and the bodies of animals that do not have skeletal systems?

• Animals without skeletal systems have less protection for their organs.

• Human bodies have more limbs than animals without skeletal systems.

• Animals without skeletal systems can regenerate lost body parts more easily.

• Human bodies are generally smaller than those of animals without skeletal systems.

How many bones are in the adult human body?

• 204

• 206

• 208

• 210