body systems

The main purpose of the ____________ system is to break food particles into pieces that can be used.

• circulatory
• respiratory
• digestive
• skeletal

The skin is the major organ in which system?

• Integumentary
• Muscular
• Endocrine
• Immune

Which system uses hormones to regulate body activities?

• Integumentary
• Urinary
• Endocrine
• Immune

Which system maintains posture, produces heat and moves the body?

• Skeletal
• Nervous
• Integumentary
• Muscular

The humerus is part of this system?

• Muscular
• Reproductive
• Skeletal
• Nervous

Which system detects changes in the environment and sends electrical signals in response to these changes?

• Nervous
• Endocrine
• Lymphatic
• Reproductive

The main function of the excretory system is....

• To filter waste from the blood stream and carry it outside of the body.
• To transport nutrients to the body.
• To break down nutrients for absorption.
• To provide structure and support for the body.

What system receives oxygen and gets rid of carbon dioxide?

• Heart
• Muscular System
• Veins 
• Respiratory System

What system is the body's way of fighting off pathogens that would make it sick?

• Excretory
• Immune
• Digestive
• Endocrine

___________ are the building blocks of life.

• cells
• legos
• blocks
• blood