Question

The 3 organ systems are 1) nervous system, 2) endocrine system, and 3) immune system; these 3 organ systems are required to work together to address ONE (not 3) homeostatic imbalance of YOUR choice. Provide a detailed discussion pertaining to the contributions of 3 organ systems to RESTORE homeostasis FOLLOWING a homeostatic imbalance . WRITE in sentences a response.

Answer 1

The nervous system consists of the brain, spinal cord and a network of nerve fibers. It controls all the other organ systems of the body, either directly or indirectly.

The endocrine system consists of different endocrine glands which secrete hormones into the blood. They work on a negative feedback mechanism and play a vital role in the normal growth, development and metabolism of the body.

The immune system consists of the lympatic fluid and different types of immune cells designed to protect the body from invading germs and keep the body disease free.

Adrenal gland is an endocrine gland which produces hormones that help regulate the body's metabolism, blood pressure, response to stress and also the immune system. There are two parts of the adrenal glands-the cortex and the medulla. Adrenaline and noradrenaline play a major role in regulation of the body homeostasis by the brain.

The adrenal glands are controlled by pituitary glands which in turn are triggered by stimulus from the hypothalamus.

When a person senses danger, the nervous system stimulates the pituitary through the hypothalamus. The pituitary will secrete hormones to stimulate the inner adrenal medulla to secrete the hormone adrenaline. Adrenaline causes an increase in heart rate, breathing rate, blood pressure, blood glucose level and flow of blood into the blood vessels. Normal functioning of adrenal glands is necessary for body homeostasis.

The adrenal gland can get infected by a variety of pathogens, like fungi, bacteria and viruses. An infection can disrupt the functioning of the adrenal glands. To stop any sort of infection and help the body to fight back, the immune cells play an important role.

So, the nervous, endocrine and immune systems work together to maintain the body's internal homeostasis.