Pituitary and its relationship with hypothalamusपीयूष ग्रंथि और हाइपोथैलेमस से इसका संबंध

NCERT Fig 19.2 · interactive diagram

Parts and their functions

• Hypothalamus (हाइपोथैलेमस) — Neuro-endocrine centre; releasing and inhibiting hormones.
• Neurosecretory cells (तंत्रिकास्रावी कोशिकाएँ) — Nuclei of the hypothalamus that produce hormones.
• Portal circulation (निवाहिका परिसंचरण) — Carries hypothalamic hormones to the anterior pituitary.
• Axons (neural link) (तंत्रिकाक्ष (तंत्रिकीय संबंध)) — Carry oxytocin and vasopressin down to the posterior pituitary.
• Pituitary stalk (पीयूष वृंत) — Connects the pituitary to the hypothalamus.
• Anterior pituitary (अग्र पीयूष) — Adenohypophysis (pars distalis + pars intermedia).
• Posterior pituitary (पश्च पीयूष) — Neurohypophysis (pars nervosa); stores and releases hypothalamic hormones.
• Anterior pituitary hormones (अग्र पीयूष हॉर्मोन) — GH, PRL, TSH, ACTH, LH, FSH (pars distalis); MSH (pars intermedia).
• Posterior pituitary hormones (पश्च पीयूष हॉर्मोन) — Oxytocin (uterine contraction, milk ejection) and vasopressin/ADH (water reabsorption).

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 19.2. Report a mistake