Across
- 2. a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body
- 4. relating to the process of digesting food
- 7. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart
- 9. any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products
- 10. a collection of tissues that structurally form a functional unit specialized to perform a particular function
- 11. the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane
- 12. the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body
Down
- 1. relating to or affecting respiration or the organs of respiration
- 3. 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
- 5. the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands
- 6. the main muscle of the respiratory system
- 7. a duct or canal holding or conveying blood or other fluid
- 8. a structure within a cell that carries out specific functions to support the life of a cell