Circulatory, Respiratory, and Excretory

Which part of the excretory system is a holding tank for urine before it leaves your body?

• bladder
• kidneys
• ureter
• urethra

Your kidneys play an important role in regulating the amount of _______ in your body.

• food
• oxygen
• sugar
• water

Your kidneys work with the ______ system to filter liquid waste from your blood.

• circulatory
• digestive
• immune
• nervous

_____ is the result of the excretory system balancing the amount of water and salts in your body and it is stored in your bladder until it is excreted.

• feces
• lymph
• urine
• water

Which organ of the excretory system is responsible for filtering liquid waste from your blood?

• Bladder
• kidneys
• ureter
• urethra

Which parts of the respiratory system divide into smaller and smaller tubes in a pattern that resembles the branches of a tree?

• pharynx
• trachea
• bronchi
• epiglottis

The organ that moves air from the nose to the lungs and is often called the windpipe is 

• larynx
• pharynx
• esophagus
• trachea

The dome-shaped muscle that plays an important role in breathing is the

• diaphragm
• alveoli
• larynx
• bronchus

In which part of the respiratory system is the air first cleaned, moistened, and warmed?

• nose
• lungs
• pharynx
• bronchi

Blood is composed of

• red blood cells
• white blood cells
• platelets and plasma
• all of the above