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25 Cards in this Set

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  • Back
  • 3rd side (hint)
The digestive system is a way for the nutrients from the __________ to gain access to the ____________ system.
What system works hand in hand with the digestive sytem to distribute nutrients?
What are the two types of digestion?
1. Mechanical
2. Chemical
Think of all the ways the food is broken down in your body.
What are the nutrients in the food you eat used for?
To repair and maintain your tissues and provide you with enough energy.
What happens when you don't have enough nutrients?
What is the basic structure of the digestive system?
A long tube leading from the mouth to the anus.
Imagine the Digestive system unwravled.
What is the main purpose of the digestive system?
To break down huge macromolecules which cannot be absorbed into smaller molecules that can.
What does the digestive system do?
What is secretion?
Delivery of enzymes, mucus and ions into the lumen and hormones into the blood.
When something is said to secrete something, what does it do?
What is absorption?
Transportation of water, ions and nutrients from the lumen, across the epithelium and into blood
What happens when a sponge is placed on top of a puddle?
What is motility?
Contractions of smooth muscle in the wall of the tube that crush and mix its contents.
Think of an example; what happens?
How are the digestive functions controlled?
Through electrical and hormonal messages from the digestive system's own nervous and endocrine systems or from the central nervous sytem and from endocrine organs.
What controls it?
What does the mouth do?
Food is broken down by chewing and saliva is added as a lubricant.
How is the food broken down?
What does the esophagus do?
A means of transmitting between the mouth and stomach.
Why is it where it is?
What does the stomach do?
It's where the enzymatic digestion of proteins start and food is turned into liquid form.
What happens in the stomach?
What does the liver do?
Secretes bile to the small intestine which are used for digestion and absorption of fats.
What does it hold?
What do the pancreas do?
Provides a mixture of enzymes to the small intestine which are used for digestion of fats, carbohydrates and protein.
What happens if the pancreas are damaged?
What does the small intestine do?
Where the final stages of chemical enzymatic digestion occur and where almost all nutrients are absorbed.
What happens to the nutrients?
What does the large intestine do?
Water is absorbed and feces are formed.
This is the last step of the digestive process.
___________ is the outermost covering of the digestive tube.
Tunica serosa
Try filling in the blank with words that are related to see what makes sense.
In the abdominal cavity, the serosa on each side of the tube fuses together to form a suspensory structure called __________.
Try filling in the blank with words that are related to see what makes sense.
What is the purpose of the mesentery?
Holds vascular and nervous supplies to the digestive tract.
What does the Mesentery hold?
What are proteins?
Polymers of amino acids linked together by peptide bonds.
Think about its chemical bond.
What are peptides?
Very short proteins;about 3 to 10 amino acids in length.
Think about its chemical layout.
Fatty acids are the building blocks of many complex ______.
What do they make up?
The most abundant storage form of fat in animals and plants, and the most important dietary lipid, is neutral fat or ____________.
Think about what would fit perfectly into context.
What are the three different types of carbohydrtes?
1. Monosaccharides
2. Disaccharides
3. Polysaccharides
One of them plays CHARADES by HIMSELF, another DOESN'T play at all and the other plays with MANY.
Enzymes that hydrolyze peptide bonds and reduce proteins or peptides to amino acids are called _________ or ___________.
Think of the words 'protein' and 'peptide'