Physiology of swallowing

Physiology of swallowing 

Chewing ( Mastication ) and Swallowing 

Chewing Has two functions

1. Mixes food with saliva

• Lubricate and facilitate swallowing 

• Expose starch in food to salivary amylase 

Gastrointestinal system Physiology MCQs

Gastrointestinal system Physsiology MCQs ( True / False )

1. Amino acid absorption is

a. Career mediated
b. Energy dependent
c. Closely related to the presence of Na+
d. Increase when thyroxin is administrated
e. Reduced in vitamin B6 deficiency

Gastrointestinal Physiology MCQs

Gastrointestinal Physiology MCQs  ( Select the best answer)

1) Which of the following has pH between 6 – 7 and a daily secretion volume of 100ml a day

a) Saliva
b) Bile
c) Gastric juices
d) Pancreatic juice
e) Intestinal juice

Insulin dependent glucose uptake occurs in

Insulin dependent glucose uptake occurs in

a. Muscle
b. Mucosa of the small intestine
c. Brain
d. Renal tubules
e. Red blood cells

Gastrointestinal Physiology SEQ

(1).
A 40 year old male was seen in the hospital OPD with a history of episodes of colicky epigastric pain over the last 6 months and moderate steatorrhoea.Upper GI endoscopy showed a duodenal ulcer.

a).The following were observed in him:
Serum gastrin level: 1150 pg/mL (Normal: 50 – 150 pg/mL)
Basal rate of secretion of HCl: 11 mmol/hr (Normal: 1 – 5 mmol/hr)
His steatorrhoea was corrected when gastric juice was removed via a naso gastric tube.
Explain the physiological basis of the above observations.