MEDICAL PHYSIOLOGY

PHYSIOLOGY

SYNAPTIC PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.
A
Positive Feedback Response
B
Negative Feedback Loop
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -If calcium decreases, the parathyroid glands sense the decrease and secrete more parathyroid hormone. The parathyroid hormone stimulates calcium release from the bones and increases the calcium uptake into the bloodstream from the collecting tubules in the kidneys.

Detailed explanation-2: -If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.

Detailed explanation-3: -What is an example of positive feedback in homeostasis? Let’s take a look at some of the examples: clot formation, childbirth, fruit ripening, and menstrual cycle. Each one depicts what a positive feedback mechanism is like: Clotting factors are released to seal a wound.

Detailed explanation-4: -Negative feedback mechanism definition A negative feedback mechanism, often known as negative feedback homeostasis, is a pathway that is triggered by a deviation in output and produces changes in output in the opposite direction of the initial deviation.

Detailed explanation-5: -Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.

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