Across
- 5. system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs.
- 6. 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
- 7. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals
- 8. any of the fine branching blood vessels that form a network between the arterioles and venules.
- 11. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
- 12. colorless fluid containing white blood cells, that bathes the tissues and drains through the lymphatic system into the bloodstream.
Down
- 1. each of a number of small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed.
- 2. The circulatory system, also called the cardiovascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from cells in the body to nourish it and help to fight diseases
- 3. 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
- 4. the network of vessels through which lymph drains from the tissues into the blood
- 9. the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.
- 10. a small cavity, pit, or hollow, in particular.