Which structure warms and moistens the air you breathe in?
nasal cavity
larynx
pharynx
trachea
Which of the following is not an excretory organ?
heart
large intestine
liver
lungs
The amount of water lost in urine is controlled by ____________.
the kidneys.
the bladder.
the lungs.
the ureter.
Bronchial tubes can contract quickly when a person has ____________
an asthma attack.
lung cancer.
emphysema.
chronic bronchitis.
What is the name of the process by which excess water or wastes are removed from the body?
Excretion
Elimination
Respiration
Urination
Which is not a structure of the urinary system?
sweat gland
kidneys
urethra
urinary bladder
What are the tiny structures in the kidneys that filter blood and form urine?
nephrons
ureters
blood vessels
capillaries