Study sets, textbooks, questions
Upgrade to remove ads
Terms in this set (50)
The process by which the body breaks down food into small nutrient molecules
The process by which nutrients pass from the digestive system into the blood
The fluid released when the mouth waters that plays an important role in both mechanical and chemical digestion
A protein that speeds up chemical reactions in a living thing
A flap of tissue that seals off the windpipe and prevents food from entering
A muscular tube that connects the mouth to the stomach
A thick, slippery substance produced by the body
Involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system
A J-shaped muscular pouch located in the abdomen
In the year ______, ___________ saved ___________life. Explain.
1822 ~ Dr. William Beaumont ~ Alexis St. Martin ~ The wound left a hole in his stomach and Dr. Beaumont observed what was happening.
What are the 3 functions of the digestive system??
1) Breaks down food - molecules 2) Molecules absorbed into blood 3) Wastes are eliminated from the body
What are the 2 types of digestion??
Mechanical is physically (chewing, stomach-churns). And chemical which is chemically in the mouth by saliva, and in the stomach by pepsin and HCI.
________ is the flap that seals off the ___________. Goes into ___________ which is lined with ___________ to make food slide down easily.
Esophagus ~ trachea ~ esophagus ~ mucus
What are the layers of muscle in the stomach??
Pepsin which is a digestive juice (digests protein), and Hydrochloric Acid which is a strong acid to help pepsin work and kill bacteria that we eat.
Why is there mucus in the stomach??
So the stomach acid doesn't burn a hole in your stomach.
Food enters through your ___________ then moves through your ___________ and into the ___________.
Mouth ~ Esophagus ~ Stomach
When you swallow food, a flap of tissue called the ___________ seals off your windpipe.
___________ is a thick, slippery substance that lines the esophagus.
The process of ___________ involves the movement of nutrients through the wall of your digestive system into your blood.
Involuntary waves of muscle contractions that keep food moving in one direction through the digestive system are called ___________.
Most MECHANICAL digestion occurs in the ___________.
The ___________ connects the mouth and the stomach.
In your mouth, ___________ mixes with food to moisten it.
The process of breaking down food into small nutrient molecules is called ___________.
A protein that speeds up chemical reactions to the body is a(n) ___________. Chemical digestion is accomplished by these proteins.
What are the 4 steps of final digestion and absorption??
Small intestine, large intestine, rectum, anus
What is the length and width of the small intestine??
Length: 6 meters ~ Width: 2-3 centimeters
What is the length and width of the large intestine??
Length: 1.5 meters ~ Width: 6 centimeters
Almost all chemical digestion and absorption takes place in the ___________.
___________ flows from ___________ into ___________ (organ that stores bile), and enters ___________ through tube from ___________.
Bile ~ liver ~ gallbladder ~ small intestine ~ gallbladder
___________ makes enzymes that breaks down starches, proteins, and fats.
Large intestine makes ___________.
What are the steps of digestion and absorption from the large intestine (5)??
1) Water is absorbed in large intestine into blood 2) Remaining is waste 3) Goes to rectum 4) Muscular opening at the end of the rectum (anus) 5) WASTE IS ELIMINATED
The part of the digestive system in which most chemical digestion takes place
The body's largest organ; it produces bile, breaks down medicine, and helps eliminate nitrogen from the body
A substance produced by the liver that breaks up fat particles
The organ that stores bile after it is produces by the liver
A triangular organ that lies between the stomach and the small intestine
Tiny, finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed
The last section of the digestive system, where water is absorbed into the blood and the remaining material is eliminated from the body
The end of the large intestine where waste material is compressed into solid form before being eliminated
A muscular opening at the end of the rectum through which waste material is eliminated from the body
Contains bacteria that feed on material passing through...
Most absorption of nutrients occurs here...
Is lined with villi...
Is directly attached to the stomach...
Prepares waste for elimination from the body...
Most chemical digestion occurs here...
Receives bile and enzymes from other organs...
Is the last section of the digestive system...
Recommended textbook explanations
Anatomy & Physiology Student Workbook
Kent Pryor, Richard Allan, Tracey Greenwood
Anatomy and Physiology
The Human Body in Health & Disease
Gary A. Thibodeau, Kevin T. Patton
Human Anatomy And Physiology
Elaine N. Marieb, Katja Hoehn
Sets found in the same folder
Female Reproductive System, Male Reprodu…
Sets with similar terms
Science Digestive System Words/definitions
5th Grade Science Digestive System
Other sets by this creator
Theme 1: No Place Like Home (Vocab)
Theme 1: No Place Like Home
Current Event Vocab Test - History
Spanish Vocabulary - Chp. 2 (La escuela)
Other Quizlet sets
Management of the patient with Pancreatic Dysfunct…
Great Gatsby Fact Test
What is the ECG criteria for this arrhythmia/patte…