Across
- 2. they carry blood back from tissues to the heart
- 3. a rhythmical throbbing of the arteries
- 7. they carry oxygen to the body's tissues
- 9. red liquid that circulates in the arteries and veins of human body
- 11. they carry blood from the heart to the body's tissues
- 13. a bundle of fibrous tissue in a human body
- 14. regular movement or sound that the heart makes
Down
- 1. they help defend the body against infections
- 4. they form a network
- 5. muscular organ that pumps the blood through the circulatory system
- 6. they are tiny cells needed for blood cotting
- 8. it is related to the system that moves blood through the body
- 10. they are holding stations for incoming blood
- 12. they pumps blood out of the heart