Sense organs contain groups of receptors that respond to specific stimuli. Effectors include muscles and glands - that produce a specific response to a detected stimulus. For example:. Receptors are connected to effectors as follows:. Responding to changes in environment Organisms need to detect and respond to changes in their internal and external environment.
All control systems include: Cells called receptors , which detect stimuli changes in the environment. The coordination centre, such as the brain, spinal cord or pancreas, which receives and processes information from receptors around the body. Effectors which bring about responses, and restore optimum levels, such as core body temperature and blood glucose levels. The body receives information from many different receptors at the same time.
Co-ordination involves processing all the information from receptors so that the body can produce a response that will benefit the whole organism. Response Effectors are organs in the body that bring about a response to the stimulus. Usually these effectors are muscles and they respond by contracting. They could however be glands and they may respond by releasing an enzyme. Average: 4. Photosynthesis 3: Genetics 1. Genes 2. Chromosomes 3. Meiosis 4.
Inheritance 5. Genetic Modification 4: Ecology 1. Energy Flow 3. Carbon Cycling 4. Climate Change 5: Evolution 1. Evolution Evidence 2. Natural Selection 3. Classification 4. Cladistics 6: Human Physiology 1. Effectors are parts of the body, such as muscles and glands, that produce a response to a detected stimulus.
For example:. This diagram summarises how information flows from receptors to effectors in the nervous system.
0コメント