digestive system
The stomach is made up of thick walls and has the strongest muscles in the digestive system. Secretions include ( three answers)
-Hydrochloric acid -Pepsin enzymes and -fluid
Some (blank) and (blank) are reabsorbed by the colon so they are not lost from the body.
-minerals -water
The substance which moistens the food by adding juices is called
Saliva
The pancreas also plays several roles here by secreting the following digestive enzymes a. (blank) to digest and break down carbs into simple surgars. B (blank) to digest and break down fat into monoglycerides and free fatty acids.
a. pancreatic amylase: B pancreatic lipase
When undigested substance leave the small intestine, they are partly digested in the colon by (blank) living there.
bacteria
Theis process is referred to as digestion
chemical digestion
The ling tube that passes the food to the stomach is called the
esophagus
Most fiber, however is not absorbed and is passed out of the colon as (blank 2 words).
fecal matter
One type of carbohydrate, (blank) does not get broken down in the small intestine because we do not produce enzymes to break the linkage.
fiber
This substance is stored in the (blank) until fat enters the small intestine.
gale bladder
Each villus is covered with tiny hair-like projections called (blank 2 words).
micro villi -these help to greatly increase the absorptive surface area, to about the size of 1/3 of a football field.
The stomach is lined with a thick viscous substance known as which coats and protects it from its own acids.
mucus
Food is propelled through the GI tract by wavelike motions called
peristalsis
At the lower end of the stomach is another sphincter, or valve called the ( 2 words)
pyloric sphincter - This regulates the flow of partially digested food into the small intestine allowing only a little at a time to be squirted forcefully in the small intestine.
When there is an erosion in the mucosa, a person may experience a burning sensation known as an
ulcer
the walls of the small intestine are lined with millions of finger-like projections called (blank).
vitti
The gallbladder contracts and releases this emulsifier into the intestine and cause fat to mix with (blank) so that the digestive enzymes can work on it.
water
When nutrients pass through into the blood and lymph they are transported to the (blank)
-liver where they are processed to provide us with energy and building materials, ect.
This process is referred to as
Mechanical digestion
The pancreas releases an alkaline chemical called (blank) to help neutralize the acidic chyme as it enters the small intestine from the highly acidic stomach environment.
bicarbonate
When the acidic chyme enters the small intestine, much action takes place. The liver manufactures a cholesterol-containing fluid called (blank) that acts as a fat emulsifier.
bile
We need to eat plenty of (blank) to maintain the health and motility of our GI tract. When a person suffers from severe malnutrition, the villi will shrink and the person will be unable to absorb nutrients, which further weakens digestion and worsens malnutrition.
fiber
At the base of the esophagus is a circular muscle called the (3 words)
lower esophageal sphincter (also known as the cardiac sphincter) When it stays relaxed or open, the acid stomach contents can back up (reflux) into the esophagus, causing a sensation of heartburn.
In the stomach, powerful acids secreted by the stomach cell initiate the digestion of by causein it to loosen its tightly bound coils.
protein
an enzyme called begins to break down starch in the mouth.
salivary amylase
When food enters the it is chewed and ground up by the
teeth