Hormones Coordination in Animals
Hormones Coordination in Animals
Coordination of the body functions in animals is brought about by the endocrine glands and the nervous system. The substances produced by endocrine glands are called hormones.
Hormones are the chemical messengers that are secreted directly in to the blood, which carries them of the body to exert their functions. There are many types of hormones that act on different aspects of the bodily functions and processes. Some characteristics of hormones are as follows:
Hormones are different compounds such as proteins, steroids, etc.
Hormones are chemical messengers which are discharged in the blood by endocrine glands, from where they reach different parts of the body.
A hormone will go to a particular organ and influence its functions. The organ that is influenced by a particular hormone is called the target organ of that hormone.
A hormone acts as a trigger or switch. Endocrine glands are directly or indirectly controlled by the nervous system, which receives information about changes in the external environment or internal conditions in the form of stimuli.
The two systems that control and coordinate different activities of a body differ from each other in many ways. Some of the differences are as shown in the table given below :-
|
Feature |
Nervous system |
Endocrine system |
|
Signals |
electrical impulses |
chemical impulses |
|
Pathways |
transmission of neurons |
transported by blood |
What are the characteristics of hormones ? | |||
| Right Option : D | |||
| View Explanation | |||
Which hormone regulates the ionic balance in the body ? | |||
| Right Option : D | |||
| View Explanation | |||
The organ that is influenced by a particular hormone is called the __________________ of that hormone. | |||
| Right Option : A | |||
| View Explanation | |||
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