Digestive System

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

Card preview (24)

Front (Question)

Chewing is _____ particle size and _____ the surface area of the grass.

Back (Answer)

Decreasing , Increasing

Front (Question)

What starts the digestion?

Back (Answer)

The Molars

Front (Question)

Mechanical Digestion:

Back (Answer)

• Decreases particle size • Increases surface area • Causes saliva to be secreted

Front (Question)

Saliva is important because …

Back (Answer)

it acts as a buffer to protect against acid and helps create the bolus.

Front (Question)

What is a Bolus?

Back (Answer)

An oval shaped thing of packed food particles and saliva to aid horses in swallowing their food

Front (Question)

The Foregut includes:

Back (Answer)

• Esophagus • Cardiac Sphincter • Saccus Ceacus (first part of stomach) • Esophageal Region (second part of stomach) • Fundic Region (third part of stomach) • Pyloric Region (fourth part of the stomach) • Pyloric Sphincter • Margo Plicatus • Small Intestines (Duodenum, Jejunum, Ilium)

Front (Question)

How long is the Esophagus of a horse and on what side is it located?

Back (Answer)

• 4 ft long - located on the left side

Front (Question)

What is the Cardiac Sphincter?

Back (Answer)

It is the flap separating the esophagus and the stomach .

Front (Question)

What lives in the Saccus Ceacus?

Back (Answer)

Bacteria and Microorganisms

#10

Front (Question)

The stomach is composed of :

Back (Answer)

• Saccus Ceacus • Esophageal Region • Fundic Region • Pyloric Region • Pyloric Sphincter

#11

Front (Question)

Parts of the Fundic Region and Pyloric Region secrete ____ due to _____ digestion.

Back (Answer)

HCl , Acid

#12

Front (Question)

The stomach continuously secretes …

Back (Answer)

HCl

#13

Front (Question)

What is the function of the Margo Plicatus?

Back (Answer)

To separate the two linings of the stomach

#14

Front (Question)

The Squamous Mucosa is composed of …

Back (Answer)

the Saccus Caecus, Esophageal Region, and the top half of the Fundic Region

#15

Front (Question)

The Glandular Mucosa is composed of …

Back (Answer)

the bottom half of the Fundic Region, Pyloric Region, and the Pyloric Sphincter

#16

Front (Question)

True or False: The Squamous Mucosa is effected by acid.

Back (Answer)

False

#17

Front (Question)

True or False: The Glandular Mucosa is effected by acid

Back (Answer)

True

#18

Front (Question)

Peristalsis is another word for …

Back (Answer)

Swallowing

#19

Front (Question)

The Stomach is the site for ______ digestion.

Back (Answer)

Chemical

#20

Front (Question)

Ulcers are found where in the stomach of a horse?

Back (Answer)

The Magro Plicatus

#21

Front (Question)

___% of the horses digestive tract is the stomach.

Back (Answer)

#22

Front (Question)

True or False: No nutrients are absorbed in the stomach.

Back (Answer)

True

#23

Front (Question)

True or False: Food leaves the stomach after 30 min of intake.

Back (Answer)

True

#24

Front (Question)

True or False: The stomach stays full all day long.

Back (Answer)

False . The stomach empties after 2 hours of initial intake.