Exploring Body Systems Quiz

Which organ is primarily responsible for pumping blood throughout the human body?

• Lungs

• Heart

• Brain

• Liver

What is the main function of red blood cells?

• Fighting infections

• Carrying oxygen

• Clotting blood

• Producing hormones

Which blood vessels carry blood away from the heart?

• Veins

• Arteries

• Capillaries

• Venules

What is the largest bone in the human body?

• Humerus

• Femur

• Tibia

• Skull

Which part of the brain controls voluntary muscle movements?

• Cerebellum

• Cerebrum

• Medulla oblongata

• Spinal cord

What is the main function of the alveoli in the lungs?

• Pumping blood

• Exchanging gases

• Filtering waste

• Producing hormones

Which component of blood helps in clotting?

• Plasma

• Platelets

• Red blood cells

• White blood cells

What is the basic unit of the nervous system?

• Neuron

• Muscle fiber

• Osteocyte

• Alveolus

Which structure protects the brain?

• Ribs

• Skull

• Spine

• Pelvis

What is the main function of the respiratory system?

• Pumping blood

• Breaking down food

• Exchanging oxygen and carbon dioxide

• Sending nerve signals