Solve these clues to fill the grid.
- Any of various water-soluble compounds having a sour taste and capable of turning litmus red
- 2 Across
- The passage between the pharynx and the stomach
- 3 Across
- Emotional distress
- 4 Across
- A painful burning sensation in the chest caused by gastroesophageal reflux
- 6 Across
- One of the contractile organs of the body
- 7 Across
- A circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface (plural)
- 8 Across
- The organic process by which food is converted into substances that can be absorbed into the body
- 1 Down
- The region of the body of a vertebrate between the thorax and the pelvis
- 5 Down