Question

1. The effector in the gastro-colic reflex is located in the:

a. stomach

b. small intestine

c. large intestine

d. none

2. John just ate a meal consisting of 800 Calories. Several hours later he produced feces from this meal. Total energy in the feces was 25 Calories. John also lost 10 Calories in urine and gas during this time. What is the digestible energy of this meal?

a. not enough info

b. 775 cals

c. 765 cals

Answer 1

1) Answer ; C) large intestine.

Reason ; When this reflex take place in the human body, the effector will be seen on the colon part and this will enable an individual to defecate. The activation is take place in stomach hence stomach would not be considered as the effector and the small intestine is not the last part to express this stimulus, Hence the above mentioned option would be the appropriate one.

2) Answer ; B) 775 ccal

Reason ; Here the given gross energy is 800 ccal, and the given fecal energy is 25 ccal, hence substracting these valuse would give the appropriate digestable energy that is 775ccal, if we substract urine energy with these value would give the metabolizable energy, hence the above mentioned value is the most appropriate one.