Nervous and hormonal systems together perform the function of control and coordination in human beings.' Justify the statement.

Explanation

For nervous and hormonal systems to control and coordinate in human beings, hypothalamus plays an important role in receiving the neural / nerve signals from brain and release hormones.
E.g. - In situation of iodine deficiency, hypothalamus releases hormones to stimulate pituitary gland, it further sends stimulating hormone to thyroid gland to secrete thyroxine that regulates carbohydrate metabolism.
Detailed Answer:
In human beings, nervous and hormonal system work together in controlling and coordinating various life processes in the body. Nervous system work by generation and transmission of electrical impulse while hormonal system works by secretion of chemical messengers called hormones. For e.g. when an emergency stimulus is detected by the nervous system, the stimulus is received and analyzed by CNS that send message to effectors to provide proper response. At the same time, nervous system activates adrenal gland to release adrenaline that prepares body by increasing heat rate, blood pressure, respiration etc. Thus, both these systems work together to perform functions of control and coordination.