Unit 5 (Human Body) Practice Test

Which system helps the body maintain homeostasis by removing waste from the bloodstream?

• Endocrine

• Excretory

• Digestive

• Circulatory

Which system carries oxygen to the muscles?

• Respiratory

• Digestive

• Excretory

• Circulatory

Which organ is the largest in the human body?

• Heart

• Lungs

• Skin

• Brain

Skin is part of the ___________ system.

• Nervous

• Integumentary

• Digestive

• Reproductive

All muscles in the human body work by __________. This causes them to shorten and apply a force to do work.

• extending

• flexing

• squeezing

• contracting

What is the function of the respiratory system?

• brings oxygen into the body and removes carbon dioxide

• produces heat for the body

• carries oxygen to the muscles and removes waste

• removes waste from the blood

Converting starches into simple sugars and enzymes breaking down proteins into amino acids are examples of ________ changes in the digestive system.

• physical

• chemical

• both physical and chemical

Skeletal muscles apply a _____ force to the bones in your body.

• pushing

• squeezing

• pulling

• hammering

What system communicates with your muscles telling them to contract?

• The muscular system.

• The endocrine system.

• The nervous system.

• The contracting system.

What system controls hormones like adrenaline?

• Skeletal system

• Endocrine system

• Reproductive system

• Muscular system