Human Body Systems

1. Which system are the lungs in?

• respiratory
• digestive
• excretory
• muscular

 Which system is the stomach in?

• respiratory
• digestive
• nervous
• excretory

Which organ is part of the respiratory system?

• tongue
• stomach
• esophagus
• lungs

 What is the main function of the respiratory system?

• take in oxygen and exhale waste like carbon dioxide
• move nutrients throughout the body
• take in carbon dioxide and exhale oxygen

One lung is bigger than the other lung.

• true
• false

The smallest units or parts of living things; the body's building blocks.

• cells
• organs
• tissues
• system

Your large and small intestines are part of this body system.

• nervous
• digestive
• muscular
• skeletal

Which body system sends electrical signals to all other body systems?

• circulatory system
• nervous system
• digestive system
• skeletal system

Which system of the human body provides protection to most of the major organs?

• Nervous System
• Muscular System
• Skeletal System
• Circulatory System

Which two human body systems are most responsible for getting oxygen to cells?

• digestive and skeletal
• skeletal and circulatory
• circulatory and respiratory
• respiratory and digestive