Pretend you are a teacher preparing a quiz for the text I will provide. 
            Each quiz question should follow the format below. 
            Ensure that you carefully recheck the questions and answers for accuracy. 
            The output should be a ready-to-use list of dictionaries for the Python eval function:

            [

                    "question": "WRITE THE QUESTION HERE",
                    "options": ["A) OPTION_1", "B) OPTION_2", "C) OPTION_3", "D) OPTION_4"],
                    "answer": INDEX_OF_CORRECT_ANSWER_IN_OPTIONS_LIST,
                    "explanation": "EXPLAIN WHY THE ANSWER IS CORRECT"

            ]

            Text:
            na
10Homeostasis
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Dr: Asma’a Al-Hnhna
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Negative feedback is the one to which the system reacts in such a way as to arrest the change or 
reverse the direction of change. After receiving a message, effectors send negative feedback 
signals back to the system.
1.
Control body Temperature.
2.
Control Blood Glucose.
3.
Water haemostasis
4.
Control Blood pressure Homeostasis
5.
Control level of Thyroid hormone
6.
Acid base balance
7.
Maintenance of electrolyte 
8.
………………
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Dr: Asma’a Al-Hnhna
12Homeostasis
13.08.2024 

Here we shall look at three more examples of homeostasis in detail:
1.
Temperature
2.
Blood glucose and
3.
Blood water.
12 
1. Temperature Homeostasis (thermoregulation) 

One of the most important examples of homeostasis is the regulation of body temperature 

Not all animals can do this physiologically. Animals that maintain a fairly constant body 
temperature (birds and mammals) are called endotherms, while those that have a variable
body temperature (all others) are called ectotherms.
Endotherms normally maintain their body temperatures at around 
35 - 40°C, so are sometimes called warm-blooded animals. 
Dr: Asma’a Al-Hnhna
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Ectothermic animals can also have very warm blood during the day 
by basking in the sun, or by extended muscle activity 9e.g. bumble 
bees, tuna). 
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
The difference between the two groups is thus that 

endothermic animals use internal corrective mechanisms, 
whilst ectotherms use behavioral mechanisms (e.g. lying in the sun 
when cold, moving into shade when hot).1.Temperature Homeostasis (thermoregulation) 

Such mechanisms can be very effective, particularly when coupled with 
internal mechanisms to ensure that the temperature of the blood going 
to vital organs (brain, heart) is kept constant. 
We use both!
Dr: Asma’a Al-Hnhna
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
In humans, body temperature is controlled by the thermoregulatory
centre in the hypothalamus.1.Temperature Homeostasis (thermoregulation) 

It receives input from two sets of thermoreceptors: 
Receptors in the hypothalamus itself monitor the temperature of the 
blood as it passes through the brain (the core temperature), 
and receptors in the skin (especially on the trunk) monitor the external 
temperature. 

Both sets of information are needed so that the body can make 
appropriate adjustments.
Dr: Asma’a Al-Hnhna
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
To our first response to encountering hotter or colder condition is voluntary –
o
if too hot, we may decide to take some clothes off, or to move into the shade; 
o
if too cold, we put extra clothes on - or turn the heating up! 

It is only when these responses are not enough that the thermos- regulatory center is 
stimulated. This is part of the autonomic nervous system, so the various responses are all 
involuntary.1.Temperature Homeostasis (thermoregulation) 
Dr: Asma’a Al-Hnhna
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When we get too hot,
the heat loss center in 
the hypothalamus is 
stimulated; 
When we get

            Quiz: