Across
- 2. to measure blod pressure
- 6. A muscular partition present at the base of thoracic cage.
- 7. trachea>bronchus>bronchiole>.............
- 8. provides immunity by fighting bacteria entering the body
- 9. blood group O is the 'universal...................'
Down
- 1. Circulatory system:.............Respiratory system:Lungs
- 3. thick walled,carry oxygenated blood and have no valves
- 4. bone marrow Production of RBCs occurs in
- 5. the pigment present in RBC