Explanation:
-a man bleeding from a cut
During homeostasis the body maintains a constant internal balance in pH, temperature, blood pressure etc. Cells in a multicellular organism become specialized for particular tasks and communicate with one another in order to maintain homeostasis.
Further Explanation:
Within the human body these are known as hormone cascades, where several complex steps occur- the tissues signal to one another with the use of hormones released by the endocrine system. The regulation (increase and decrease) of these secretions is achieved by negative feedback loops, where the release of certain substances during a cascade in turn halts the secretion of hormones at earlier stages.
The endocrine system involves chemical signalling via the secretion of molecules called hormones into extracellular fluid. They bind to chemical receptors in order to cause specific changes in target cells, these lead to changes in the body's internal environment called homeostasis. It includes the thyroid, parathyroid, pituitary, pineal and adrenal glands along with other regions. The bone, adipose tissue, heart, pancreas and liver are a few of the regions of the body which show endocrine function. The brain, or control center functions to receive and process the information from the receptor. Effectors receive the control center's command and illicits a response in the form of a feedback loop, that may oppose or enhance the stimulus.
For each instance a particular homeostatic mechanism may be employed...
- a boy shivering in the cold- a reflex response to drops in core body temperature; skeletal muscles make small movements to build up warmth.
- a girl sweating because it's hot- evaporation of fluid secreted from the sweat glands onto the skin removes heat, causing the elevated core temperature to drop to a 'normal' range
- a woman breathing hard while jogging- oxygen is taken into the lungs at a faster rate while carbon dioxide is removed; this aids in gaseous exchange and maintaining the pH of the blood
However, during wound healing, which happens after bleeding from a cut, the homeostatic response is clotting; platelets within the blood and fibrinogen form a clot, in order to prevent blood loss and infection.
Learn more about tissue types at brainly.com/question/8487952
Learn more about homeostasis at brainly.com/question/1601808
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