Medicine (MD/DO)
Anatomy & Embryology
Large Intestine

Master Large Intestine with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Large Intestine

Recommended Picmonics

picmonic thumbnail
Foregut Structures, Blood Supply and Innervation
picmonic thumbnail
Midgut Structures, Blood Supply and Innervation
picmonic thumbnail
Hindgut Structures, Blood Supply and Innervation
picmonic thumbnail
Retroperitoneal Structures
picmonic thumbnail
Gastrointestinal Anatomy

Large Intestine

Large Intestine
The large intestine is the final part of the digestive tract, and is mainly used to reabsorb water and store waste. In contains the colon, in which electrolytes and water are absorbed. Few macronutrients are absorbed because most were absorbed in the small intestine. Also, the microflora, which is native gut bacteria found in the colon, produces vitamins (including essential vitamins B and K). Finally, the rectum is located just before the anal canal and stores feces until defecation.

The majority of the large intestine is the colon, which is divided into four parts: ascending, transverse, descending and sigmoid.

Electrolyte Reabsorption
Electrolyte Electric-lights absorbed by Sponge-lights

Electrolytes are absorbed in the transverse colon, particularly sodium and potassium.

Water Reabsorption
Sponges Absorbing Water

The large intestine is the last site of water absorption before waste is excreted. Water is absorbed throughout the colon.

Microflora Produce Vitamins
Flowers producing Vikings

The large intestine has a lot of microflora, or helpful bacteria. Some of the microflora produce vitamins, including vitamins B and K.

Rectum Stores Feces
Rectum-rectangle outhouse Storing Feces

The rectum is the site of feces storage prior to excretion. It is located before the anus and after the sigmoid colon.


Take the Large Intestine Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Memorize facts with phonetic mnemonics

Ace Your Medicine (MD/DO) Classes & Exams with Picmonic:

Over 1,890,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medicine (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medicine (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medicine (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.