BIOSC-116 Lecture Notes - Lecture 12: Homeostasis, Little Penguin, Transpiration
11 Sep 2020
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Explain that homeostasis consists of two stages: external environment. Changes or deviations, from stable state are caused by the external and internal environment. Any change, or information, that provokes a response is called a stimulus. Receptors detect stimuli (organisms then react to change). Disturbance receptors: these receptors, usually skin, detect changes caused by the. Misalignment receptors: these receptors detect changes from the bodies stable state. Receptors can range from a patch of sensitive cells, to complex organs like eyes and ears. When a change affects the organisms normal/stable state, the response is homeostatic. This type of response will counteract the change to ensure that stable state is maintained. Effectors bring about responses to stimuli and can include muscle or glands. Outline the role of the nervous system in detecting and responding to environmental changes maintenance of a relatively steady internal state. The nervous system works to regulate and maintain the internal environment and respond to the external environment.
