L1 physio

Question 1

Define energy balance

Answer 1

Energy input=energy output

Question 2

Compare between positive energy balance and negative energy balance

Answer 2

Positive energy balance:
-energy intake more than energy output
-increase body weight and more energy store like athletes, obesity and children more anabolism
Negative energy balance:
-energy intake less than energy output
-loss of body weight, catabolism endogenous energy store more than normal like anorexia, starvation

Question 3

What is character of feeding center

Answer 3

-active all the time
-in the lateral hypothalamus nucei on each side

Question 4

What is satiety center?

Answer 4

-it is a center of fulfilment after taking food
-the transmitter: serotonin and catecholamine

Question 5

List regulation of food intake