Health experts calling for masks as respiratory infections rise 02:48. Larry Gill is glad to have his daughter home. "She was hard to keep sitting up. She was wanting to lay down. She was whimpering." ...

3. Circulatory and respiratory systems - 2 weeks to do circulatory system - This week, do heart, blood vessels above the heart, respiratory system - Table 1 - heart to subclavian arteries - Table 2 ...