Q. With regard to the oesophagus, which is NOT true? (Solved)
1. the upper part is supplied by the recurrent laryngeal nerve
2. the upper third has skeletal muscle whereas the lower two thirds is smooth muscle
3. the narrowest part is where it passes through the diaphragm
4. oesophageal pain can be referred to the neck, arm and thoracic wall
5. pierces the diaphragm at the level of T10 vertebral body
- c. the narrowest part is where it passes through the diaphragm