Respiratory and Excretory System Crossword

Biological system used for the process of respiration.
Contains nostrils; is used for smelling and breathing.
Conveys air to and from the lungs; the windpipe.
Major air passages of the lungs that diverge from the windpipe.
Pair of organs within the rib cage; with passages in which is drawn into.
The movement of oxygen from the outside air to the cells within tissues.
Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
Contraction increases the volume of the thorax and so inflates the lungs.
The nasal cavity is a large air filled space above and behind the nose in the middle of the face.
The hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans.
Biological system that removes excess.
A pair of organs that excretes urine.
The duct by which urine passes from the kidney to the bladder.
A membranous sac in which urine is tored for excretion.
The duct by which urine is conveyed out of the body from the bladder.
A large lobed glandular organ in the abdomen of vertebrates.