Question

What is the term used for secretion of endocrine glands responsible for change taking place in the body?

Answer 1

Hint: Hormones are certain chemicals secreted in the body. It is released in trace amounts, and they act as intracellular messengers. They are transported to different tissues and organs via blood since they don’t require ducts to translocate them in the body.

Complete step by step answer: Hormones are secretions of the endocrine glands directly secreted into the bloodstream, and they are translocated to the target site. There are many endocrine glands located in the body at different locations: They are;
1) Pituitary gland: It is found below the hypothalamus and it is attached to it with a stalk. It secretes several hormones like growth hormones, prolactin, oxytocin, vasopressin, etc.
2) Pineal gland: it secretes melatonin which helps to maintain the sleep-wake cycle, and also regulates body temperature.
3) Thyroid gland: it secretes thyroxine which helps in maintaining the basal metabolic rate, body temperature, body weight, etc.
4) Adrenal glands: Adrenaline and noradrenaline are secreted by this gland which helps in an emergency situation, and hence it is called the flight or fight hormone.
5) Testes: it is present in males that secrete male sex hormones, such as testosterone; which is responsible for the secondary sexual characters in males like deepening of the voice, the appearance of the beard and moustache.
6) Ovary: it is present in females that secrete female sex hormones. It is responsible for secondary sexual characters in the female like starting of the menstrual cycle.

Note: There is another type of gland beside endocrine gland known as an exocrine gland. Its secretion is carried out by the duct to the target site. Examples, sweat glands, salivary glands, etc.