Temperature
thermometer
detect any changes in the environment (noise level, vibration, temperature)
1 pain 2 pressure 3 temperature
The two types of temperature senses are warm receptors and cold receptors. Warm receptors detect increases in temperature, while cold receptors detect decreases in temperature. Together, they help our bodies maintain a stable internal temperature.
The receptors that detect heat are known as thermoreceptors and they respond to increases in temperature. Conversely, the receptors that detect cold are also thermoreceptors but they respond to decreases in temperature. These thermoreceptors are specialized nerve endings located in the skin and other tissues of the body.
The body's thirst mechanism is primarily located in the hypothalamus, a region of the brain that regulates various bodily functions including thirst and hydration. When the body's fluid levels drop, sensors in the hypothalamus detect this change and signal the body to feel thirsty to encourage fluid intake.
Infrared radiation is used by sensors to detect differences in temperature. Infrared sensors detect the thermal energy emitted by objects in the form of infrared radiation, which allows them to measure temperature variances without physical contact.
Hypothalamus
The rattlesnake can detect temperature changes of 0.003 °C or less in its immediate surroundings.
The property measured by a thermometer is temperature. Thermometers can detect and display temperature readings in various units such as Celsius or Fahrenheit.
Receptors that detect temperature outside the body, such as in the skin, are known as thermoreceptors. These specialized nerve endings respond to changes in temperature by detecting thermal energy. When the temperature changes, thermoreceptors send electrical signals to the brain, allowing us to perceive and respond to hot or cold stimuli.