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Title: How do humans maintain homeostasis with respect to water and ions? Post by: tt2323 on Jan 4, 2012 Create a flow chart for each situation to describe how humans maintain homeostasis with respect to water and ions.
a) an increase of water consumption b) a decrease of water consumption My attemps: a.) ADH will be inhibited because of the large volume. Body fuild will become more dillute. b.) Kidneys will retain water, solutes in blood will be more concentrated. ... Title: Re: How do humans maintain homeostasis with respect to water and ions? Post by: RockYou13 on Jan 4, 2012 a) an increase of water consumption
ADH (antidiuretic hormone) is a hormone secreted from the posterior pituitary gland that causes the kidneys to conserve water. In the event that a person drinks a large volume of water, body fluids become more dilute (contain more water and less solute). As a result, the release of ADH will be inhibited. b) a decrease of water consumption In the event that a person is dehydrating due to a lack of water intake, the solutes in the blood become more concentrated. This will signal the posterior pituitary gland to secrete ADH, causing the kidneys to retain water. The secretion of ADH is regulated by the hypothalamus, as it contains osmoreceptors that sense changes in the concentration of body fluids. Title: Re: How do humans maintain homeostasis with respect to water and ions? Post by: ace on Jan 4, 2012 Your body's homeostasis requires a certain concentration of solution of electrolytes, proteins, sugars and other things in water in the blood, at about 7.3-7.5 pH
When your body is dehydrated, it does its best to conserve water and not let go of any, so that electrolytes, sugars, proteins etc. remain the same concentration. A severe change in concentration can affect blood flow, change the pH, and make the body toxic. When your body is overhydrated, it tries to get rid of water while trying to retain all its components. |