Respiratory system
Across
- 3. Inside the lungs bronchi is further divided into_____
- 4. Prevents the food from entering the windpipe
Down
- 1. Muscles that help in the movement of the rib cage on inhalation and exhalation
- 2. Gas exchange in the lungs happens in ____
- 5. Common passage for food and air
- 6. Pair of spongy organs protected by the ribcage