Starvation Flashcards
What is the definition of starvation?
The continuous and regular deprivation of food, or food and drink required for the maintenance of life of an individual.
What is acute starvation or complete starvation?
When food, or food and drink, are completely withheld for a continuous period.
What is acute starvation or complete starvation?
When food, or food and drink, are completely withheld for a continuous period.
What is chronic starvation or partial starvation?
When the food taken is quantitatively and qualitatively deficient for a long period, also referred to as malnutrition.
What happens initially during starvation?
Glycogen stores are used up within about 24 hours.
What becomes the main source of energy production after glycogen is depleted in starvation?
Lipolysis, where adipose tissue releases free fatty acids that are used as fuel.
What are ketone bodies, and why are they important in starvation?
Ketone bodies are synthesized from free fatty acids and serve as major metabolic fuels for skeletal and heart muscles, as well as the brain.
How can ketone bodies and free fatty acids be detected during starvation?
They can be detected in plasma and urine as starvation progresses.
How long does it take for ketoacidosis to start in starvation?
3 to 14 days.
Which fat is the last to disappear during starvation?
The buccal fat pad (Bichat’s fat pad).
