______ enters stomach from _________.

Bolus, Lower Esophageal Sphincter

Chyme, Lower Esophageal Sphincter

Which BEST describes the formula for chyme?

Food + Lysozymes + Amylase + Water + Lipase

Bolus + Lysozymes + Amylase + Water + Lipase

Allows the stomach to expand to hold up to 1 G of food

Controls stomach emptying into duodenum

Allow for special type of peristalsis called churning

Controls stomach filling and prevents back flow into esophagus

Vigorous muscular movement in several directions to break up solids

Controls stomach emptying into duodenum

Allows the stomach to expand to hold up to 1 G of food

Allow for special type of peristalsis called churning

Controls stomach filling and prevents back flow into esophagus

Vigorous muscular movement in several directions to break up solids

Allow for special type of peristalsis called churning

Allows the stomach to expand to hold up to 1 G of food

Controls stomach emptying into duodenum

Controls stomach filling and prevents back flow into esophagus

Vigorous muscular movement in several directions to break up solids

Lower Esophageal Sphincter

Controls stomach filling and prevents back flow into esophagus

Allows the stomach to expand to hold up to 1 G of food

Controls stomach emptying into duodenum

Allow for special type of peristalsis called churning

Vigorous muscular movement in several directions to break up solids

Allows the stomach to expand to hold up to 1 G of food

Controls stomach emptying into duodenum

Allow for special type of peristalsis called churning

Controls stomach filling and prevents back flow into esophagus

Churning is a 3-step process of muscular contractions in what order?

Propulsion > Grinding > Retropulsion

Grinding > Retropulsion > Propulsion

Grinding > Propulsion > Retropulsion

Propulsion > Retropulsion > Grinding

Grinding > Retropulsion > Grinding

Churning is a 3-step process of muscular contractions. Which definition BEST describes propulsion ?

Peristaltic waves from fundus towards pylorus

Vigorous peristalsis and mixing action that results in delivery of small amounts of chyme into duodenum (forces sphincter open).

Peristaltic waves closes pyloric sphincter forcing most contents back into stomach.

Peristaltic waves closes pyloric sphincter forcing most contents back into duodenum.

Vigorous peristalsis and mixing action that results in delivery of large amounts of chyme into duodenum (forces sphincter closed).

Churning is a 3-step process of muscular contractions. Which definition BEST describes grinding ?

Vigorous peristalsis and mixing action that results in delivery of small amounts of chyme into duodenum (forces sphincter open).

Peristaltic waves from fundus towards pylorus

Peristaltic waves closes pyloric sphincter forcing most contents back into stomach.

Peristaltic waves closes pyloric sphincter forcing most contents back into duodenum.

Vigorous peristalsis and mixing action that results in delivery of large amounts of chyme into duodenum (forces sphincter closed).

Churning is a 3-step process of muscular contractions. Which definition BEST describes retropulsion ?

Peristaltic waves closes pyloric sphincter forcing most contents back into stomach.

Peristaltic waves from fundus towards pylorus

Vigorous peristalsis and mixing action that results in delivery of small amounts of chyme into duodenum (forces sphincter open).

Peristaltic waves closes pyloric sphincter forcing most contents back into duodenum.

Vigorous peristalsis and mixing action that results in delivery of large amounts of chyme into duodenum (forces sphincter closed).

Stomach Macro-anatomy & Physiology

Quiz

•

Biology

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS1-2

Standards-aligned

Wilmarie Busher-Betancourt

Used 97+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A

Esophagus

Pylorus

Duodenum

Cardia

Fundus

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

B

Esophagus

Pylorus

Duodenum

Cardia

Fundus

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

C

Esophagus

Pylorus

Duodenum

Cardia

Fundus

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

D

Serosa

Pylorus

Body

Cardia

Fundus

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

E

Serosa

Pylorus

Body

Cardia

Fundus

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

F (folds)

Serosa

Rugae

Body

Cardia

Fundus

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

G

Pylorus

Greater Curvature

Body

Lesser Curvature

Pyloric Sphincter

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