You are told to take an axillary temperature on a small child. You will place the thermometer

A. To keep the body's blood sugar level high: Negative feedback does not aim to maintain a specific high level of blood sugar. Instead, it responds to deviations from a set point, whether high or low, to restore balance.

B. To regulate excretion via the kidneys: While kidney function can be influenced by negative feedback mechanisms, this is a specific example rather than the overall result of negative feedback in the body.

C. To control body movement: Body movement is largely coordinated by the nervous and muscular systems. Negative feedback primarily regulates physiological variables rather than directly controlling voluntary movement.

D. To maintain homeostasis: Negative feedback mechanisms counteract changes in the body’s internal environment, returning physiological variables to their set points. This constant regulation helps maintain stable conditions necessary for survival.

A. Glucose: Glucose is the immediate form of sugar circulating in the blood and used by cells for energy. However, it is not stored in large amounts inside the liver or skeletal muscles, as excess glucose must be converted into a storage form.

B. Cholesterol: Cholesterol is a lipid molecule involved in cell membrane structure and hormone synthesis. It is not a storage form of carbohydrates and is handled differently in the body compared to sugars and glycogen.

C. Triglycerides: Triglycerides are the main storage form of fats found in adipose tissue. They serve as long-term energy reserves but are not the form in which carbohydrates are stored in the liver or muscles.

D. Glycogen: Glycogen is the storage form of carbohydrates in the body, primarily stored in the liver and skeletal muscle. It serves as a readily available energy reserve that can be broken down to glucose when blood sugar drops or energy demands increase.