For each effect of pregnancy A–E, select the most appropriate option from the following list of physiological terms.
1. Smooth muscle relaxation.
2. Smooth muscle constriction.
3. Brainstem reflex.
4. Sacral spinal cord reflex.
5. Decreased metabolic rate.
6. Increased metabolic rate.
A. The pregnant woman feels excessively hot in quite cool conditions; she dresses more lightly than most people and is keen to have windows opened for ventilation.
B. The pregnant woman has suffered several episodes of urinary frequency with a burning sensation on passing urine; this has been attributed to urinary infection, from which she has not previously suffered.
C. The pregnant woman suffers frequently from a burning sensation referred to the mid line of the chest; she didn’t have it before pregnancy, it is not related to taking exercise, but indigestion tablets seem to help.
D. The woman in early pregnancy feels severely nauseated and quite frequently vomits, particularly first thing after getting up.
E. Despite eating more than usual, the pregnant woman suffers from decreased frequency and difficulty in defaecation.