Human Body Systems

Which of the following is a component of the circulatory system?

• heart

• blood vessels

• blood

• all answers

Organs that work together form 

• connective tissues. 
• tissue systems. 
• organ systems. 
• All Answers

The system that recognizes and attacks foreign substances is known as the 

• integumentary system 
• immune system 
• digestive system 
• nervous system 

Which system involves the mouth, pharynx and esophagus? 

• nervous system 
• excretory system 
• digestive system 
• reproductive system 

From the smallest functional units to the largest, the body is organized as follows: 

• cell, system, organ, tissue, body. 
• organ, cell, tissue, system, body. 
• system, organ, tissue, cell, body. 
• cell, tissue, organ, system, body. 

Which of the following systems is primarily involved with gas exchange? 

• respiratory system 
• excretory system 
• digestive system 
• skeletal system 

The system that involves the thyroid, pancreas and hypothalamus is called the ___________. 

• nervous system 
• endocrine system  
• skeletal system 
• excretory system 

The ___________ are the main organs of the respiratory system. 

• veins
  
• lungs
• arteries
• kidneys

The ____________________ is the body system that transports oxygen, nutrients, and waste through the body.  

• respiratory system 
• digestive system
• circulatory system 
• immune system

What is your body's process of maintaining balanced conditions?

• photosyntheis
• homeostasis
• circulation
• regulation