3. ADAM'S APPLE
5. TARGET SITE
When the larynx grows larger during puberty, it sticks out at the front of the throat. This is called as an Adam's apple. Everyone's larynx grows during puberty, but a girl's larynx doesn't grow as much as a boy's larynx. As boys' larynx grow so much more, it makes their voices deeper than girls' voice.
The endocrine system is a chemical messenger system which consists of loops of the hormones released by internal glands of an organism directly into the circulatory system, thus regulating distant target organs.
Pituitary gland is called as the master gland because it controls the functioning of other endocrine glands in the body thus maintaining the hormones which they secretes. Thus pituitary gland secretes hormones that are secreted by other endocrine glands such as ovaries, testis, thyroid gland ,adrenal gland etc.
A hormone is a member of a class of signaling molecules in multicellular organisms, that are transported to distant organs to regulate physiology and behaviour. They travel in through the bloodstream to tissues or organs.
Insulin is a hormone that lowers the level of glucose (a type of sugar) in the blood. It is made up of beta cells of the pancreas and is released into the blood when the glucose level goes up, as it lowers the sugar level.
Estrogen is a sex hormone which is responsible for the development and regulation of the female reproductive system and their secondary sex organs with their characteristics. It also regulates the production of ovum once in a month and also controls the menstruation process.
Testosterone is a sex hormone which is responsible for the development and regulation of the male reproductive system and their secondary sex organs with their characteristics. It also regulates the production of appropriate amount of sperms required for fertilisation.
The thyroid gland, is an endocrine gland present in the neck which consists of two connected lobes. It plays a major role in the metabolism, growth and development of the human body. It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream.
Adolescence is a transitional stage of physical and psychological development that generally occurs during the period from puberty to legal adulthood.
The target site is the tissue or organ on which the enzyme or hormone acts. For example, the follicle stimulating hormone secreted by the pituitary gland, targets the ovary in females and the testis in males. The enzymes do not cause any effect on tissues or organs other than the target site.
The larynx is commonly called as voice box. It is an organ in the top of the neck which is involved in breathing, producing sound and protecting the trachea from the food transmission. The larynx manipulates pitch and volume, which is essential for phonation.
Puberty is the process of physical changes through which a child's body matures into an adult body and becomes capable for sexual reproduction.