Historical Examples. 1  There was room in it for a girl-partner at the oar, but no accommodation for passengers. 2  Every man and spar and oar on the vessel seemed burning in its light. 3  An oar has been made since I came in, wanting the shaped handle. 4  Greer went back to the stern, picked up an oar and began to scull.
1 Somatostatin inhibits growth hormone release in response to GHRH and to other stimulatory factors such as low blood glucose concentration. 2  Ghrelin is a peptide hormone secreted from the stomach. 3  Ghrelin binds to receptors on somatotrophs and potently stimulates secretion of growth hormone.
The hypothalamus secretes thyrotropin-releasing hormone which, in turn, stimulates the pituitary gland to produce thyroid stimulating hormone. This hormone stimulates the production of the thyroid hormones, thyroxine and triiodothyronine, by the thyroid gland. This hormone production system is regulated by a negative feedback loop so that when the levels of the thyroid hormones, thyroxine and triiodothyronine increase, they prevent the release of both thyrotropin-releasing hormone and thyroid stimulating hormone.