Question

Which physiological trigger(s) will result in the sensation of hunger? which physiological trigger(s) will result in the sensation of hunger? low glucose levels high glucose levels release of the chemical messengers leptin and serotonin eating a meal with a high satiety value?

Answer 1

The sensation of hunger is primarily triggered by low blood sugar levels and an empty stomach sending signals to the brain. Satiety value is reached when blood glucose levels increase after eating and leptin hormone is released from fat cells. The hypothalamus regulates both the hunger and satiety signals in the brain.

Step-by-step explanation:

Physiological Triggers of Hunger

Several physiological mechanisms trigger the sensation of hunger. Primarily, low blood sugar levels signal the body to initiate feeding behavior. When our stomachs are empty and contract, we experience hunger pangs. These sensations are magnified as blood glucose levels decrease, prompting the pancreas and liver to release chemical signals that increase hunger.

Conversely, the sensation of satiety occurs upon eating a meal, which increases blood glucose levels. This, in turn, causes the pancreas and liver to signal the cessation of hunger. Furthermore, the hormone leptin, released by fat cells, serves as a satiety signal, reducing the urge to eat more. However, it is important to note that in conditions such as obesity, leptin resistance can impair this mechanism, contributing to overeating.

The hypothalamus region of the brain is crucial in regulating hunger and satiety signals. Foods high in fatty acids often promote satiety more effectively than those rich in carbohydrates.

Answer 2

The correct answer is: low glucose levels.

Blood levels of nutrients such as glucose, amino acids, and fatty acids provide an information to the brain about the food- energy intake. Besides those nutrients, hormones play an important role in the regulation of hunger. For example, Glucagon, ghrelin (stomach) and epinephrine are hunger stimulants. There are also neural signals and psychological factors that regulate hunger.