Biology · Class 11 · Chapter 19
Chemical Coordination and Integration
11 lessons 84 min 2 simulations
This chapter is the partner of neural control: it explains how hormones, chemical messengers carried in the blood, keep every cell of the body in step. It walks gland by gland through the human endocrine system (hypothalamus, pituitary, pineal, thyroid, parathyroid, thymus, adrenal, pancreas, testis and ovary), then the hormones made by the heart, kidney and gut, and ends with how a hormone acts once it reaches its target cell.
What the exam asks
NEET turns this chapter into match-the-column items: gland to hormone, hormone to target, and hormone to the disorder caused by too much or too little of it. Marks are lost by mixing up where oxytocin and vasopressin are made and where they are released, by swapping the actions of insulin and glucagon or of PTH and TCT, by confusing diabetes insipidus with diabetes mellitus, and by misplacing the three zones of the adrenal cortex or the receptor type of steroid and protein hormones.
Lessons
11 lessons · 84 min
1Endocrine glands and hormonesNCERT §19 (opening text) and §19.16 min2The human endocrine system and hypothalamusNCERT §19.2 and §19.2.16 min3The pituitary glandNCERT §19.2.28 min4Pineal and thyroid glandsNCERT §19.2.3–§19.2.46 min5Parathyroid gland and thymusNCERT §19.2.5–§19.2.66 min6Adrenal glandNCERT §19.2.77 min7PancreasNCERT §19.2.89 min 1 sim8Testis and ovaryNCERT §19.2.9–§19.2.107 min9Hormones of heart, kidney and gutNCERT §19.36 min10Mechanism of hormone actionNCERT §19.410 min 1 sim11Chapter reviewMust-know facts, traps and formulas13 min