https://www.khanacademy.org/science/health-and-medicine/nervous-system-and-sensory-infor/taste-gustation-and-smell-olfaction-topic/v/pheromones 2024-02-09T21:30:53.441494697Z Pheromones Pheromones are chemical signals released by animals to trigger responses in others of the same species. Dogs, bees, and insects use pheromones for communication, mating, and marking territory. These signals are detected by specialized cells in the vomeronasal system, leading to behavioral changes via the amygdala in the brain. Ronald Sahyouni video https://cdn.kastatic.org/googleusercontent/ubIEPKHAa8qn75qveaxp16vgdJ-KZk3TOBUu-sIPNRRIDVNmKXJfDM4bQby6mPHSs75q62EO7RKu5nJDI-65kQk Pheromones Pheromones are chemical signals released by animals to trigger responses in others of the same species. Dogs, bees, and insects use pheromones for communication, mating, and marking territory. These signals are detected by specialized cells in the vomeronasal system, leading to behavioral changes via the amygdala in the brain. https://cdn.kastatic.org/ka-youtube-converted/EO4_vu9IuNk.mp4/EO4_vu9IuNk.mp4 537 Endocrine coordination and hormonal regulation https://www.khanacademy.org/science/health-and-medicine/advanced-endocrine-system/biological-basis-of-behavior-endocrine-system/v/endocrine-system-and-influence-on-behavior-part-1 2024-02-09T21:30:53.441494697Z Endocrine system and influence on behavior - Part 1 The endocrine system, a network of glands producing hormones, works with the nervous system to control the body's internal environment. Hormones, classified as proteins, steroids, or tyrosine derivatives, can function as autocrine, paracrine, or endocrine signals. Key endocrine organs include the hypothalamus, pituitary gland, thyroid, parathyroid, adrenal glands, gonads, and pancreas. Ryan Scott Patton video https://cdn.kastatic.org/googleusercontent/SRDnkDVyXlDp2E2v5AzCF01FF2m4hojOiav3fib8i-xTRgohjo_djLMNjuRov5yayLtj73SXHM3q9WW6tm_5NT97 Endocrine system and influence on behavior - Part 1 The endocrine system, a network of glands producing hormones, works with the nervous system to control the body's internal environment. Hormones, classified as proteins, steroids, or tyrosine derivatives, can function as autocrine, paracrine, or endocrine signals. Key endocrine organs include the hypothalamus, pituitary gland, thyroid, parathyroid, adrenal glands, gonads, and pancreas. https://cdn.kastatic.org/ka-youtube-converted/cQKPvT-aEqk.mp4/cQKPvT-aEqk.mp4 631 Endocrine coordination and hormonal regulation https://www.khanacademy.org/science/health-and-medicine/advanced-endocrine-system/endocrine-system-introduction/v/types-of-hormones 2020-09-09T11:23:51Z Types of hormones There are three major types of hormones. 1) Protein hormones (or polypeptide hormones) are made of chains of amino acids. An example is ADH (antidiuretic hormone) which decreases blood pressure. 2) Steroid hormones are derived from lipids. Reproductive hormones like testosterone and estrogen are steroid hormones. 3) Amine hormones are derived from amino acids. Epinephrine, which helps regulate the fight-or-flight response, is an amine hormone.  Ryan Scott Patton video https://cdn.kastatic.org/googleusercontent/QhlKkvgeADKb2Lr5kRxtM9nwcvOBkEQ9wg9ny_yV4OauTj9njVAe5YjpsJCevVRdjrDA7Js52tqVs0GvANUJ3vZP Types of hormones There are three major types of hormones. 1) Protein hormones (or polypeptide hormones) are made of chains of amino acids. An example is ADH (antidiuretic hormone) which decreases blood pressure. 2) Steroid hormones are derived from lipids. Reproductive hormones like testosterone and estrogen are steroid hormones. 3) Amine hormones are derived from amino acids. Epinephrine, which helps regulate the fight-or-flight response, is an amine hormone.  https://cdn.kastatic.org/ka-youtube-converted/KSclrkk_Ako.mp4/KSclrkk_Ako.mp4 602 Endocrine coordination and hormonal regulation https://www.khanacademy.org/science/health-and-medicine/advanced-endocrine-system/endocrine-system-introduction/v/endocrine-gland-hormone-review 2020-09-09T11:23:53Z Endocrine gland hormone review Welcome to the Endocrine System. Get ready to learn about one of the most important ways that our body parts communicate! By Ryan Patton. Ryan Scott Patton video https://cdn.kastatic.org/googleusercontent/cAV7TezTb_lyZCDzwl2WHVLgX4NI-x9mIxjywPFX-FsSUTvF95R_FNKhXy7iu2dB8X4LIoMQ5vr_DgEZ6x-iWcThzQ Endocrine gland hormone review Welcome to the Endocrine System. Get ready to learn about one of the most important ways that our body parts communicate! By Ryan Patton. https://cdn.kastatic.org/ka-youtube-converted/ER49EweKwW8.mp4/ER49EweKwW8.mp4 699 Endocrine coordination and hormonal regulation https://www.khanacademy.org/science/how-does-the-human-body-work/x0fe8768432761c62:chemical-coordination-and-integration/x0fe8768432761c62:adrenal-and-pancreas/e/hormones-in-animals 2026-03-05T08:50:45.400692349Z Hormones in animals An exercise to provide students practice for endocrine system. saiyem exercise https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-3/x01ceb15d0be61009:untitled-615/e/the-parathyroid-and-thymus-glands 2025-02-07T06:11:32.208916979Z The Parathyroid and Thymus Glands This exercise tests knowledge of the parathyroid and thymus glands, the hormones produced and their functions. Nivedhitha Suresh exercise https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-3/x01ceb15d0be61009:untitled-615/e/the-adrenal-gland 2026-04-08T00:54:09.631945657Z The adrenal gland This exercise deals with the functions of the adrenal gland and the diseases associated with it. Moumita Sen exercise https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-3/x01ceb15d0be61009:untitled-615/e/pancreas 2026-01-02T03:26:47.797410698Z Pancreas Pancreas Moumita Sen exercise https://www.khanacademy.org/science/how-does-the-human-body-work/x0fe8768432761c62:chemical-coordination-and-integration/x0fe8768432761c62:thyroid-parathyroid-and-thymus/e/the-thyroid-and-the-parathyroid 2023-06-22T12:24:26.024134163Z Thyroid This exercise covers the functions of the thyroid gland and the diseases associated with it. Moumita Sen exercise https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-3/x01ceb15d0be61009:untitled-615/e/the-thyroid-parathyroid-and-thymus-glands 2026-01-24T15:20:42.617490009Z The Thyroid Gland This exercise tests knowledge of the thyroid gland, the hormones it produces and their functions, and disorders of the gland. Nivedhitha Suresh exercise