Human Body Systems

The heart is a muscular structure that pumps blood through blood vessels to all parts of the body. Which level of organization do heart, blood, and blood vessels together represent?

• Cell

• Organ

• System

• Tissue

Tags

NGSS.MS-LS1-3

What is the primary function of the circulatory system?

• to break down food within the body

  
  

• to produce blood cells for use throughout the body

  
  

• to send signals throughout the body

  
  

• to transport blood within the body

  
  

To which organ system do these organs belong?

• circulatory

• digestive

• excretory

• integumentary

Which body systems work together to make sure that oxygen reaches the cells from the outside environment and carbon dioxide is removed from the body?

• The respiratory system and the circulatory system.
• The digestive system and the nervous system.
• The muscular system and the skeletal system.
• The endocrine system and the lymphatic system.

Which system’s primary function is to provide shape and structure to the human body?

• Nervous system
• Skeletal system
• Circulatory system
• Muscular system

Which diagram correctly shows the levels of organization in a human?

• 
• 
• 
• 

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-1

NGSS.MS-LS1-2

The nervous system works with two other body systems to control movement. What are the two other body systems that allow for movement?

• Muscular system and skeletal system
• Digestive system and respiratory system
• Immune system and integumentary system
• Endocrine system and circulatory system

How does the muscular system help the respiratory system?

• It monitors and controls the breathing rate.

  
  

• It helps absorb carbon dioxide supplied by the blood.

  
  

• It moistens and warms the air taken in from the nose.

  
  

• It helps in the movement of organs involved in breathing.

  
  

Which two body systems make nutrients available to the cells of the body?

• Digestive system and circulatory system
• Muscular system and skeletal system
• Respiratory system and endocrine system
• Nervous system and immune system

Which is a major organ of the nervous system?

• brain

• bone

• lung

• heart