adrenal
There are many factors which affect an organism's metabolic rate, but the thyroid gland is a gland in the neck which produces thyroxine, a hormone that stimulates metabolism.
Control the general metabolic rate.
the thyroid gland
The thyroid gland released thyroid hormone, which overall sets the basal metabolic rate. However, other hormones can temporarily affect metabolic rate, including epinephrine and norepinephrine.
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Thyroid Gland
The thyroid gland controls the metabolic rate.
The thyroid gland regulates the body's normal metabolic rate by producing hormones such as triiodothyronine (T3) and thyroxine (T4). These hormones play a key role in controlling how quickly the body uses energy, helping to regulate metabolism.
The thyroid gland would likely be malfunctioning if a person has a high metabolic rate. The thyroid gland produces hormones that regulate metabolism, so an overactive thyroid (hyperthyroidism) can result in symptoms of increased metabolism such as weight loss, rapid heartbeat, and sweating.
Pituitary