Question

How do the nervous and endocrine systems differ in their rate of control and in the way in which they communicate?

Answer 1

The endocrine system comprises the endocrine glands and the hormones. Hormones are chemical messengers that are secreted directly into the blood circulation. The nervous system comprises the nerves, the neurotransmitters, the brain and the spinal cord.

Complete answer:
The nervous system communicates with the body through electrical impulses. The impulses travel from one neuron to the other through neurotransmitters. The endocrine system communicates through chemical messengers that are hormones. The endocrine glands in the body are as follows:
-Hypothalamus
-Pineal
-Thyroid
-Adrenals
-Pituitary
-Parathyroid
-Testis in males and ovaries in females
The hormones reach the site of action through the circulation. The nerve impulses are conducted by the neurons. The conduction by nerves is a very fast process. Communication through hormones is a slow process. The effect of the hormones stays for a longer period while those of the nervous system are short-lived.
The major area of function of the nervous system is the management of coordination of various parts, the emotions, planning, the intellectuality, etc. Whereas, the endocrine system majorly deals with human behaviour, reproduction, growth and metabolism.

Note: In a way, the nervous and the endocrine systems work together in a coordinated fashion in order to bring about the changes in bodily functions. Neurons are the structural and functional unit of the nervous system. The nervous system is further divided into the central and the peripheral nervous system.