WB JEE Medical WB JEE Medical Solved Paper-2014

  • question_answer
    Which of the following pituitary hormones is  secreted without the involvement of a Releasing Hormone (RH)?

    A)  Thyroid Stimulating Hormone (TSH)

    B)  Follicle Stimulating Hormone (FSH)

    C)  Oxytocin

    D)  Prolactin

    Correct Answer: C

    Solution :

     Oxytocin is a mammalian neurohypophysial hormone produced by hypothalamus and stored and secreted by posterior lobe of pituitary gland. It acts as a neuromodulator in the brain. It is the only hormone of pituitary out of the hormones given in the question, which is secreted by the pituitary without the involvement of a Releasing Hormone (RH), rest all, i.e., TSH, FSH and prolactin are secreted with the involvement of releasing hormones to release thyrotroph, gonadotroph and lactotroph cells triggers respectively the anterior lobe of pituitary to release their particular hormones such as thyroid releasing hormone,  gonadotropin releasing hormone and prolactin releasing hormone, respectively


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