Across
- 5. a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe
- 6. each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed
- 7. main artery that carries blood away from your heart to the rest of your body
- 9. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart
- 11. any of the muscular-walled tubes forming part of the circulation system by which blood is moved to other parts of the body
- 12. A tube through which the blood circulates in the body
Down
- 1. the opening in the lower part of the human face, surrounded by the lips, through which food is taken in and from which speech and other sounds are emitted
- 2. the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus
- 3. any of the major air passages of the lungs which diverge from the windpipe
- 4. the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body
- 6. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box
- 8. a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation
- 10. any of the fine branching blood vessels that form a network between the arterioles and venules