structure of human body
1. Thermoreceptors perceive the impact of heat on the part of human body and send signals through neurons to brain that causes the feeling of pain. If the signals fail to pass from thermoreceptors to brain, the risk of burning the part of the body arises. The pain is the indicator of the danger to human body and the ultimate manifestation of pain is a pain shock, which may be deadly for human body.
2. Olfaction is responsible for smell sense. Gustation is responsible for taste. They involve chemical reactions to taste and to smell. Hair cells contribute to hearing and equilibrium. They evoke receptors and help to convey the information via neurons and nervous system to the brain. The waves of sound, for instance are perceived by hair cells and convey the perceived information via neurons to the brain. Cone and rod cells are located in the retina of the eye. Cone cells are responsible for color vision they function in relatively bright light. In contrast, rod cells function in dim light.
3. Thyroid glands control how human body uses energy. The thyroid produces calcitonin, which plays role in calcium homeostasis. In such a way, the thyroid contributes to the regulation of the level of calcium in human body. Parathyroid glands are located behind thyroid and produce parathyroid hormone in response to the low calcium level stimulating the production of calcium and balancing the amount of calcium in human body. In such a way, thyroid generates calcitonin, whereas parathyroid glands regulate the level of calcium in human body through production of hormones.
4. The hypothalamus’ function is to link the nervous system to the endocrine system via pituitary gland. The hypopthalamus is responsible for certain metabolic processes, including synthesizing secreting certain neurohormones, which are called hypothalamic-releasing hormones, which stimulate or inhibit secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep and
2. Olfaction is responsible for smell sense. Gustation is responsible for taste. They involve chemical reactions to taste and to smell. Hair cells contribute to hearing and equilibrium. They evoke receptors and help to convey the information via neurons and nervous system to the brain. The waves of sound, for instance are perceived by hair cells and convey the perceived information via neurons to the brain. Cone and rod cells are located in the retina of the eye. Cone cells are responsible for color vision they function in relatively bright light. In contrast, rod cells function in dim light.
3. Thyroid glands control how human body uses energy. The thyroid produces calcitonin, which plays role in calcium homeostasis. In such a way, the thyroid contributes to the regulation of the level of calcium in human body. Parathyroid glands are located behind thyroid and produce parathyroid hormone in response to the low calcium level stimulating the production of calcium and balancing the amount of calcium in human body. In such a way, thyroid generates calcitonin, whereas parathyroid glands regulate the level of calcium in human body through production of hormones.
4. The hypothalamus’ function is to link the nervous system to the endocrine system via pituitary gland. The hypopthalamus is responsible for certain metabolic processes, including synthesizing secreting certain neurohormones, which are called hypothalamic-releasing hormones, which stimulate or inhibit secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep and