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GI Tract

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

How long is the gi tract?

Back (Answer)

About 8 long.

#2
Front (Question)

What organs make up the GI tract?

Back (Answer)

Stomach, small and large intestines, pancreas and gallbladder

#3
Front (Question)

What is the function of the GI tract?

Back (Answer)

Efficient digestion and absorption of ingested nutrients

#4
Front (Question)

What quantity of food and water enter the small intestine and what quantity reaches the large?

Back (Answer)

~10mL enters the small intestine and only ~1.5mL reaches the large

#5
Front (Question)

What is digestion?

Back (Answer)

Digestion is the chemical processing of food into absorbable substance

#6
Front (Question)

Where does digestion begin?

Back (Answer)

In the mouth

#7
Front (Question)

What are the three phases of the digestive process?

Back (Answer)

Neurogenic Gastric Intestinal

#8
Front (Question)

What happens in the neurogenic phase of digestion?

Back (Answer)

Sight, smell and taste of food stimulates the brain. The brain sends impulses to the stomach via the vagus nerve and this nerve innervates the stomach inducing peristalsis and gastric secretion of HCl and gastrin

#9
Front (Question)

What nerve in from the brain stimulates the stomach to release HCl and gastrin?

Back (Answer)

Vagus nerve

#10
Front (Question)

What does the vagus nerve stimulate in the stomach?

Back (Answer)

Peristalsis and gastric secretion of HCl and gastrin

#11
Front (Question)

What is the second phase of the digestive process?

Back (Answer)

Gastric phase

#12
Front (Question)

What phase in the digestive process is initiated by the entry of food into the stomach and stomach distention?

Back (Answer)

Gastric phase

#13
Front (Question)

How is the gastric phase initiated?

Back (Answer)

By the entry of food into the stomach and stomach stretching.

#14
Front (Question)

What is the pH of HCL?

Back (Answer)

1-2

#15
Front (Question)

What cells release HCl? Why?

Back (Answer)

The parietal cells of the stomach. Due to cell stimulation, stretching and gastrin release

#16
Front (Question)

What is the major digestive hormone of the stomach?

Back (Answer)

Gastrin

#17
Front (Question)

What cells release gastrin?

Back (Answer)

G cells

#18
Front (Question)

What is the function of gastrin hormone?

Back (Answer)

Gastrin causes enzyme and gastric fluid to be released, and the start of stomach motility/churning

#19
Front (Question)

This hormone causes enzymes and gastric fluids to be released, and the start of stomach motility.

Back (Answer)

Gastrin

#20
Front (Question)

What is the major digestive enzyme of the stomach?

Back (Answer)

Pepsin

#21
Front (Question)

What cells release pepsin?

Back (Answer)

Gastric chief cells

#22
Front (Question)

This enzyme released by gastric chief cells serve in the hydrolysis of proteins.

Back (Answer)

Pepsin

#23
Front (Question)

Food mixed with gastric fluid is called?

Back (Answer)

Chime

#24
Front (Question)

What phase of the digestive process begins when chime enters the duodenum?

Back (Answer)

The intestinal phase