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Class 11 Biology Endocrine System Notes for NEET & CBSE

  Endocrine System Summary Notes (NEET Biology – Easy Line by Line Explanation)  - Dr.Sanjaykumar pawar 1. Hormones and Their Functions Hormones are special chemical messengers produced by endocrine glands. They help in: Coordination of body activities Regulation of body functions Integration between organs Hormones control: Metabolism Growth Development Reproduction Homeostasis 2. Endocrine System Organs The human endocrine system includes: Hypothalamus Pituitary gland Pineal gland Thyroid gland Adrenal gland Pancreas Parathyroid gland Thymus Gonads: Testis (male) Ovary (female) Other organs also producing hormones: Gastrointestinal tract Kidney Heart 3. Pituitary Gland (Master Gland) Divisions of Pituitary The pituitary gland has 3 parts: (i) Pars distalis (Anterior pituitary) Produces 6 trophic hormones. Trophic hormones regulate other endocrine glands. (ii) Pars intermedia Secretes only one hormone: MSH (Melanocyte Sti...