GI System (lab)

Question 1

Uvula

Answer 1

extension of soft palate (CN#9)

Question 2

Salivary Amylase

Answer 2

chemical digestion of carbs.

Question 3

Epiglottis

Answer 3

covers opening of trachea, preventing aspiration

Question 4

Oral phase of Deglutition

Answer 4

Voluntary

Question 5

Pharyngeal phase

Answer 5

back of mouth; hard/soft palate (involuntary)

Question 6

Esophageal phase

Answer 6

involuntary contraction of esophagus

Question 7

Parietal cells

Answer 7

secret Hydrochloric acid (protein & plant cell digestion)

Question 8

Chief cells

Answer 8

secrete PEPSINOGEN (most abundant pre-enzyme)

Question 9

S. I. x3 divisions

Answer 9

1. Duodenum (receives chyme)
2. Jejunum
3. Illeum
   NB. All chemical digestion and most absorption occurs here! (20’ long)

Question 10

ileocecal valve

Answer 10

between small & large

Question 11

Haustra

Answer 11

pouches along long intestine

Question 12

Liver Function

Answer 12

1. filter toxins
2. absorb glucose/ minerals
3. Glycogen synthesis
4. Albumin synthesis
5. Bile synthesis

Question 13

Common Hepatic duct

Answer 13

drains bile from liver

Question 14

Cystic duct

Answer 14

connects bile duct to gall bladder

Question 15

Common bile duct

Answer 15

Transports bile to duodenum

Question 16

Peritoneum

Answer 16

membrane lining pelvic cavity

• parietal = outer
• visceral =inner

Question 17

Greater Omenta

Answer 17

organ anchor to peritoneal wall (fat apron)

Question 18

Lesser Omenta

Answer 18

connects lesser curvature to liver

Question 19

Messentery

Answer 19

Anchors to posterior body wall

Question 20

Mesoduodenum

Answer 20

duo. –> post. colon

Question 21

Messentery Proper

Answer 21

jejunum to illeum

Question 22

Pancreati Amylase

Answer 22

breaks carbs to monosac.

Question 23

Tripsinogen /chymtripsinogen/chymotripsin

Answer 23

complete protein digestion