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When growth hormone levels are low, which gland is stimulated to release growth hormone releasing factor?
Thyroid gland
Hypothalamus
Adrenal gland
Pancreas
Hypothalamus
The hypothalamus is the control center that regulates the secretion of growth hormone by releasing Growth Hormone-Releasing Hormone (GHRH). When the body detects low levels of circulating growth hormone, the hypothalamus secretes GHRH to trigger the anterior pituitary gland to produce and release more growth hormone.
The hypothalamus is the control center that regulates the secretion of growth hormone by releasing Growth Hormone-Releasing Hormone (GHRH). When the body detects low levels of circulating growth hormone, the hypothalamus secretes GHRH to trigger the anterior pituitary gland to produce and release more growth hormone.
Think of the hypothalamus as a thermostat in a house. When the 'temperature' (growth hormone level) drops below a set point, the thermostat (hypothalamus) clicks on the heater (pituitary) to bring the levels back up to normal.
Hypo-tells the Pituitary-to-produce (H-P-P mechanism)
GHRHтЖТAnterior┬аPituitaryтЖТGH┬аrelease
This process operates via a negative feedback loop. When blood levels of Growth Hormone (GH) are low, the hypothalamus detects this and releases GHRH into the hypophyseal portal system. This stimulates the somatotroph cells in the anterior pituitary to synthesize and release GH into the bloodstream, which then stimulates tissue growth and metabolism.
The hypothalamus acts as the primary neuroendocrine bridge between the nervous system and the endocrine system.
Somatostatin is the inhibitory hormone also produced by the hypothalamus to stop GH release, showing a dual-control mechanism.
Growth hormone is essential for cell reproduction and regeneration in humans.
Maintains homeostasis of metabolic and growth factors.
Allows for precise physiological regulation based on the body's energy demands.
Regulation of somatic growth during childhood and adolescence.
Maintenance of muscle mass and bone density in adults.
Growth hormone (GH) is also known as somatotropin.
Option A (Thyroid gland) secretes thyroxine and triiodothyronine; Option C (Adrenal gland) manages stress via cortisol and adrenaline; Option D (Pancreas) regulates blood glucose via insulin and glucagon.
B is correct тАФ The hypothalamus is responsible for detecting low hormone levels and stimulating the anterior pituitary via GHRH.
Always remember that the 'Hypothalamus' acts as the master commander for the pituitary gland, which is often called the 'Master Gland'.