Across
- 3. These are the upper chambers of the heart
- 5. these are lower chambers of the heart
- 8. It continuously circulates through blood vessels
- 10. cage Heart is present almost at the centre of this.
- 12. The heart is divided into how many compartments
- 13. vessels that carry blood towards the heart from various parts of the body
- 14. the walls of the veins are
Down
- 1. muscular organ
- 2. This system performs the circulation of various substances.
- 4. The heart is made up of these muscles
- 5. Arteries do not have
- 6. This protects the heart from mechanical shocks
- 7. heart is slightly inclined at this side
- 9. Heart consists of how many chambers
- 11. blood vessels which carry the blood away from the heart to the body