Which of the following secretes the hormone, relaxin, during the later phase of pregnancy ? (1) Uterus (2) Graafian follicle (3) Corpus luteum (4) Foetus
Option 3) Relaxin is produced first by the corpus luteum of the ovary and later by the placenta. It helps in parturition as it increases the flexibility of the pubic symphysis and helps dilate the uterine cervix.
