Human Body Systems

What is the correct hierarchical organization of the human body from smallest to largest?

• Systems → Organs → Tissues → Cells

• Cells → Tissues → Organs → Systems

• Tissues → Cells → Systems → Organs

Tags

NGSS.MS-LS1-3

Which system forms the outermost layer of the body and includes skin, nails, and hair?

• Muscular system

• Integumentary system

• Skeletal system

What is the primary function of the skeletal system?

• Producing hormones

• Filtering blood

• Supporting the body and protecting organs

How do muscles help the body function?

• By producing white blood cells

• By filtering waste products

• By contracting and relaxing

Tags

NGSS.MS-LS1-3

Which of the following is NOT a type of muscle in the human body?

• Skeletal muscles

• Cardiac muscles

• Lymphatic muscle

The nervous system consists of which main components?

• Heart and blood vessels

• Brain, spinal cord, and nerves

• Kidneys and bladder

What is the main function of the circulatory system?

• Filtering blood in the kidneys

• Producing hormones

• Pumping blood throughout the body

Which system is responsible for exchanging oxygen and carbon dioxide?

• Digestive system

• Circulatory system

• Respiratory system

Which organ is NOT part of the digestive system?

• Esophagus

• Kidney

• Small intestine

What is the primary function of the urinary system?

• Fighting infections

• Producing hormones

• Filtering blood and producing urine