homeostasis. Flashcards
what is the definition for homeostais?
regulation of the internal conditions of cells to maintain optimum conditions, functioning in response to internal and external changes.
why is it important?
maintains optimum conditions for enzyme action and all cell functions.
what does homeostasis need to maintain?
blood glucose concentration.
body temp.
water levels.
what does homeostasis control?
the endocrine system and the nervous system.
component of control system: receptors.
description of feature.
detect stimuli changes in the environment.
component of control system: co-ordination centres ( brain, spinal chord and pancreas.)
description of feature.
receives and processes information from receptors.
component of control system: effectors ( muscles or glands.)
description of feature.
bring about responses which restore optimum levels.