Across
- 1. ion responsible for carbon dioxide transport
- 5. fatty molecule that lowers the surface tension of water film on the alveolar sac
- 6. the immunity a baby receives from its mother through nursing is an example of this type of immunity
Down
- 2. better known as “the guardian of the airways”
- 3. name of artery just below wrist; often used to count a patient’s pulse
- 4. these immune system cells recruit other cells to fight the invaders; act as manager or directors of immune system