Pica is a psychological disorder characterised by a desire for non-nutritive substances such as ice, soap, hair, paper, metal, soil, stones, glass, or chalk. Pica is derived from the Latin word for magpie (picave), a bird known for its unusual eating habits, where it is known to eat almost anything.
Signs and Symptoms:
Pica's clinical presentation is highly variable and is linked to the specific nature of the resulting medical conditions as well as the ingested substances.
The reported symptoms of poisoning or infectious agent exposure are extremely variable and are related to the type of toxin or infectious agent consumed.00
What is Psychological Disorder?
A psychological disorder is defined broadly by psychologists as psychological dysfunction in an individual that is associated with distress or impairment and a reaction that is not culturally expected.
To learn more about Psychological Disorder from the link:
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Tameko enjoys playing on her school's volleyball team. She enjoys the physical activity and is proud of earning a place on the team, but this year, her friends have started making fun of all the school teams and clubs. They aren't making fun of her directly, but the friends have suggested that they don't think it is cool to play sports or have so much school spirit. Tameko is starting to feel pressured to quit the team. What should she do?
A. Quit the team; image is important and playing volleyball is not worth the risk of losing friends
B. Tell her friends how much she likes being on the team; if they don't respect that, find some friends who do
C. Join a traveling volleyball team and don't tell her friends about it; what they don't know, they can't laugh at
D. Explain to her friends why they should love volleyball, and avoid ever hanging out with them again the answer is B
Answer:
It is as a result of a chemical called a buffer.
Explanation:
All functioning cells, organ, blood or any other substance need to always be constant (in this case pH) and a slight change will lead to a loss of function. Fortunately, there are chemicals called buffers that act by maintaining comstant internal environment, and they work by absorbing excess hydrogen ions or releasing them depending on the acidity or alkalinity thus resisting a change in the chemical environment.