Year 8 Science Bones, Muscles, and Blood

How do antagonistic muscles work?

• They work together to push a bone.

• One muscle contracts while the other relaxes.

• Both muscles relax at the same time.

• They both contract simultaneously.

Where are ball-and-socket joints found in the human body?

• Elbows and knees

• Shoulders and hips

• Wrists and ankles

• Neck and spine

What type of joint is found in your knee?

• Ball-and-socket joint

• Hinge joint

• Pivot joint

• Saddle joint

What is the main function of red blood cells?

• Protect against pathogens

• Transport oxygen

• Transport nutrients

• Help in clotting

Which component of blood fights infections?

• Plasma

• Red blood cells

• White blood cells

• Platelets

Which blood component helps in clotting?

• Red blood cells

• Plasma

• Platelets

• White blood cells

What is the main component of blood that transports carbon dioxide?

• Red blood cells

• Plasma

• White blood cells

• Platelets

Which muscles work in pairs to move bones at a hinge joint?

• Smooth muscles

• Cardiac muscles

• Antagonistic muscles

• Synergistic muscles

Which of the following is not a function of blood?

• Transporting oxygen

• Regulating body temperature

• Providing structural support

• Fighting infections

What are the two types of blood cells?

• Red and white blood cells

• Plasma and platelets

• Enzymes and hormones

• Proteins and antibodies