Question

Relaxin is released from:
A. Pituitary
B. Ovary
C. Testes
D. Adrenals

Answer 1

Relaxin is the hormone which helps in widening the cervix at the time of the child birth. We all know that hormones are secreted from the ductless or the endocrine glands. There are various endocrine glands located at different parts of the body.

Complete answer:
To know the correct answer to the question, we must be well aware of the different hormones.
Hormones are chemical messengers which are poured directly into the bloodstream by endocrine glands. There are various hormones in our body. These perform the various functions inside the body and help the body to function properly. The hormones have a wide range of effects. Their level is also maintained through negative feedback.
Relaxin is the hormone which is released from the corpus luteum of the ovary. It also regulates the menstrual cycle. During ovulation its level rises.
The main function of the relaxin hormones comes when the female gives birth to the child. Relaxin widens the pubic bone and helps in labor. It also softens the cervix and helps in relaxing the muscles of the uterus. Further, it might at times prepare the endometrium for the implantation of the zygote.

Hence, the correct answer to the question is ovary.

Note:
Here it must be noted that the hormone relaxin must not be confused with the hormone oxytocin. Oxytocin is released from the posterior pituitary. This hormone helps in the contraction of muscles of the uterus during parturition.