Across
- 2. any of the pieces of hard whitish tissue making up the skeleton in humans and other vertebrates.
- 3. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
- 6. an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.
- 7. 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
- 9. 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.
- 10. a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation.
Down
- 1. the part projecting above the mouth on the face of a person or animal, containing the nostrils and used for breathing and smelling.
- 4. a whitish fiber or bundle of fibers that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs.
- 5. 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. 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.
- 8. the internal organ in which the major part of the digestion of food occurs, being (in humans and many mammals) a pear-shaped enlargement of the alimentary canal linking the esophagus to the small intestine