Celery <em>(Apium graveolens) </em>belongs to the family Apiaceae, is a marshland plant. Celery is used as a salad and its extract is used fro the preparation of herbal medicine.
Celery when kept in refrigerator for several days becomes limp as celery lose its water content and become dehydrated. The cell turgidity has been lost and celery wilt.
The respiratory centers that control your rate of breathing are in the brainstem or medulla. The nerve cells that live within these centers automatically send signals to the diaphragm and intercostal muscles to contract and relax at regular intervals.
