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

Where does digestion start?

• stomach
• mouth
• esophagus

 What is the main job of the digestive system? 

• break down foods into nutrients that can be used by the body
• take in oxygen and exhale waste like carbon dioxide
• pump blood throughout the body
• makes the body hungry

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

• cells
• organs
• tissues
• system

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

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

Bone cells need nutrients. Which two systems get nutrients to bone cells?

• the digestive system and the circulatory system
• the circulatory system and the respiratory system
• the respiratory system and the skeletal system
• the skeletal system and the digestive 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