The document summarizes the key components and functions of the digestive system. It describes the digestive tract as a long twisting tube starting at the mouth and ending at the anus. It then discusses the liver, stomach, gallbladder, and pancreas. The liver produces bile and filters toxins from the blood. The stomach stores, breaks down, and mixes food before slowly emptying it into the small intestine. The gallbladder stores and concentrates bile from the liver to aid in digestion. The pancreas produces hormones like insulin that regulate blood sugar and enzymes that help break down food.
2. General of the Digestive system
The digestive tract is a long twisting tube
that starts at the mouth and ends at the
anus.
Digestion is the complex process of
turning the food you eat into nutrients
The digestion process also involves
creating waste to be eliminated.
3. Four terms of the digestive system
Liver
Stomach
Gallbladder
Pancreas
4. Structure of Liver
Lies in the upper
right quadrant
Four primary
lobes:
1. Right lobe
2. Left lobe
3. Caudate lobe
4. Quadrate
5. Function of Liver
produces bile for the break down of fats
converts glucose (sugars) to glycogen (stored sugar)
filters harmful substances from the blood such as alcohol
storage of vitamins and minerals (Vitamin A, D, E, & K)
responsible for producing cholesterol. produces about 80% within the
body.
matures red blood cells
6. Stomach
Lies in upper left quadrant
A temporary “ storage
tank”
7. Function of Stomach
Storing the food we eat.
Breaking down the food into a liquidly mixture called chyme.
Mixing enzymes which is are chemicals that break down
food.
Slowly empties that liquidly mixture into the small intestine.
9. Function of Gallbladder
The gall bladder stores and concentrates
bile from the liver
Releases bile into the small intestine
(duodenum) to further digest food there.
10. Pancreas
Location: most of
pancreas lies deep to
the greater curvature
of the stomach.
Shape: Tadpole-shaped
gland
11. Function of Pancreas
Endocrine function:
produce the hormones insulin and glucagon.
Insulin:
1. lowering blood sugar levels and allowing the body’s
cells to use glucose for energy.
2. Insulin is released after eating protein and especially
after eating carbohydrates, which increase glucose
levels in the blood.