Endocrine System
Endocrine System
Endocrine system: The endocrine system consists of a collection of bag-like structures called glands. These glands are located at specific places inside our bodies and release chemical substances called hormones. The major glands that make up the human endocrine system are pituitary, thyroid, adrenals, pancreas, ovaries, and testes. A diagrammatic representation of the human endocrine system is shown.
1. Pituitary gland
Location: base of the brain
Hormones secreted: 1. Thyroid stimulating hormone (TSH), 2. Growth hormone (GH)
Hormone action : TSH : Its principal function is to monitor and regulate the activity of other glands.
GH : GH stimulate linear growth in children and helps to maintain bone and other tissues in adult.
2. Pineal gland :
Location : Deep in the brain
Hormone secreted : melatonin and serotonin
Hormone action : Melatonin hormones regulate night and day cycles or sleep-wake cycles.
Serotonin stabilizes our mood, feelings of well-being, and happiness.
3. Thyroid gland
Location: Base of the throat
Hormones secreted: Thyroxine
Hormone action : Thyroxine plays a crucial role in heart and digestive function, metabolism, brain development, bone health and muscle control.
4. Thymus gland
Location : Beneath the breastbone at the level of the heart
Hormone secreted : Thymosin hormone
Hormone action : Produce and process T lymphocytes.
5. Adrenal gland
Location: Near the kidneys
Hormones secreted: Adrenaline
Hormone action : Adrenaline is often known as the fight or flight hormone because it prepares the body to act, especially when the body encounters stress.
6. Pancreas
Location: Near the liver
Hormones secreted: insulin, glucagon
Hormone action : Insulin acts to lower blood sugar, and glucagon, which acts to raise blood sugar.
7. Testis: (In males: two in number)
Location: Male genital organs
Hormones secreted: Testosterone
Hormone action : Testosterone controls the development of secondary sexual characters in males such as facial hair, beard, moustaches etc. It stimulates spermatogenesis (formation of sperm).
8. Ovaries (in female; two in number)
Location : Pelvic region
Hormones secreted: Estrogen and progesterone
Hormone action : Estrogen stimulates the growth and development of female secondary sex organs and female secondary sexual characters (such as development of breasts). Progesterone play an important role in regulation of menstrual cycle and pregnancy.
Question: Why pituitary gland is also called as master gland of the endocrine system?
Solution : Pituitary gland is also called as master gland of the endocrine system because:
(i) The hormones it secretes play an active part in controlling the functions of other endocrine glands.
(ii) Its job is to receive messages about the need for a particular hormone and to secrete the hormones that cause the manufacture and release of the hormones.
Chemical substances released from endorine glands are known as ___________________ | |||
| Right Option : C | |||
| View Explanation | |||
Estrogens are secreted by _______________ | |||
| Right Option : B | |||
| View Explanation | |||
Consisder the following statements and select the option which correctly identifies true (T) and false (F) ones.
| |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [20]
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
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Archit Segal
7thMy experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
