Organ Systems and Their Functions

Which organ system includes the heart, blood vessels, and blood?

• Digestive system

• Circulatory system

• Respiratory system

• Muscular system

Which organ system includes the esophagus, stomach, small intestines, and large intestines?

• Digestive system
• Circulatory system
• Respiratory system
• Endocrine system

Which organ system includes the brain, spinal cord, and nerves?

• Nervous system
• Muscular system
• Skeletal system
• Excretory system

Which organ system delivers oxygen and nutrients to all of the body's cells?

• Nervous system
• Integumentary system
• Respiratory system
• Circulatory system

Which organ system controls major body functions, muscular movements, and responses?

• Nervous system
• Integumentary system
• Respiratory system
• Circulatory system

Which organ system gets oxygen into the bloodstream and removes carbon dioxide?

• Respiratory system
• Muscular system
• Digestive system
• Circulatory system

Major organs of the digestive system

• Kidneys, nephrons
• Stomach, intestines, mouth
• Heart, blood vessels, blood
• Liver, kidneys, heart

Major organs of the nervous system

• Kidneys, nephrons
• Stomach, intestines, mouth
• Heart, blood vessels, blood
• Brain, spinal cord, nerve

Major organs of the skeletal system

• Muscles, tendons

• Bones, joints

• Marrow, periostium, nerves

• Ribs, quadriceps, femur

Heart, blood vessels, blood

• Digestive system
• Excretory system
• Circulatory system
• Immune system