Exploring the Skeletal System

What is the total number of bones in an adult human body?

• 210

• 204

• 198

• 206

Name the longest bone in the human body.

• humerus

• femur

• radius

• tibia

What are the two main parts of the human skeletal system?

• Thoracic skeleton and pelvic skeleton

• Vertebral skeleton and limb skeleton

• Cranial skeleton and facial skeleton

• Axial skeleton and appendicular skeleton

What is one of the primary functions of the skeleton?

• Protection against disease

• Support and structure for the body.

• Regulating body temperature

• Facilitating digestion

How does the skeleton help protect vital organs?

• The skeleton absorbs shock to prevent organ damage.

• The skeleton generates heat to keep organs warm.

• The skeleton allows organs to float freely without support.

• The skeleton protects vital organs by providing a rigid structure that encases and supports them.

What type of joint allows for the most movement?

• Hinge joint

• Saddle joint

• Ball-and-socket joint

• Pivot joint

What is the role of cartilage in the skeletal system?

• Cartilage serves as the main structural component of bones.

• Cartilage is only found in the brain and spinal cord.

• Cartilage provides support, flexibility, and cushioning in the skeletal system.

• Cartilage is primarily responsible for blood production.

What is the function of bone marrow?

• The function of bone marrow is to produce blood cells and store fat.

• To store calcium and phosphorus.

• To provide structural support to the body.

• To facilitate muscle contraction.

Why is calcium important for the skeletal system?

• Calcium is primarily used for muscle contraction.

• Calcium helps in the production of red blood cells.

• Calcium is crucial for maintaining strong and healthy bones in the skeletal system.

• Calcium is essential for nerve signal transmission.

What is the difference between vertebrates and invertebrates?

• Vertebrates do not have internal organs while invertebrates do.

• Vertebrates breathe oxygen while invertebrates breathe carbon dioxide.

• vertebrates have no backbone while invertebrates have a backbone

• vertebrates generally have an endoskeleton while invertebrates have exoskeletons