Final answer:
Receptors are responsible for sensing changes in blood glucose, temperature, pH of the bloodstream, and other levels in order to make necessary adjustments in the regulation. For example, beta cells in the pancreas detect excess glucose and release insulin to regulate blood glucose levels.
Step-by-step explanation:
The cells responsible for sensing changes in blood glucose, temperature, pH of the bloodstream, and other levels in order to send signals to make necessary adjustments in the regulation are called receptors. Receptors are specialized cells or sensory organs that detect a specific stimulus and convert it into a signal that can be interpreted by the nervous system. For example, in the control of blood glucose, specific endocrine cells in the pancreas called beta cells detect excess glucose in the bloodstream and respond by releasing the hormone insulin. Insulin signals other cells in the body to take up excess glucose, thus regulating blood glucose levels.
In the case of temperature regulation, specialized receptors in the skin called thermoreceptors detect changes in temperature and send signals to the brain. Receptors are specialized cells or sensory organs that detect a specific stimulus and convert it into a signal that can be interpreted by the nervous system. The brain then sends signals to effectors, such as blood vessels or sweat glands, to adjust body temperature accordingly.