Question

which hormone suppresses uterine contractions during the first two trimesters of pregnancy? a.) relaxin b.) progesterone c.) estrogen d.) hcg

Explanation:

Progesterone is known as the "hormone of pregnancy." It helps in maintaining the uterine lining for implantation and also suppresses uterine contractions during the first two trimesters. Relaxin helps in softening the pelvic ligaments and cervix. Estrogen has roles in the development of secondary sexual characteristics and in pregnancy it helps in uterine growth but not in suppressing contractions. hCG (human chorionic gonadotropin) is important for maintaining the corpus luteum in early pregnancy to produce progesterone and estrogen but its main role is not suppressing uterine contractions.

Answer:

B. Progesterone