Exploring Human Body Systems Quiz

Which muscle group is primarily responsible for extending the knee joint?

• Hamstrings

• Quadriceps

• Biceps brachii

• Triceps brachii

What is the largest bone in the human body?

• Humerus

• Femur

• Tibia

• Radius

Which chamber of the heart pumps oxygenated blood to the body?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

What is the main muscle involved in breathing?

• Deltoid

• Diaphragm

• Pectoralis major

• Trapezius

Which part of the nervous system is responsible for voluntary movements?

• Autonomic nervous system

• Somatic nervous system

• Sympathetic nervous system

• Parasympathetic nervous system

Where does most nutrient absorption occur in the digestive system?

• Stomach

• Large intestine

• Small intestine

• Esophagus

Which muscle group is located at the back of the upper arm?

• Biceps brachii

• Triceps brachii

• Deltoids

• Pectorals

Which bone protects the brain?

• Femur

• Skull

• Scapula

• Clavicle

What is the name of the blood vessels that carry blood away from the heart?

• Veins

• Arteries

• Capillaries

• Venules

Which structure prevents food from entering the windpipe during swallowing?

• Larynx

• Epiglottis

• Trachea

• Bronchi