Intro to digestive system
How long is the system
8 meters long
How many parts are in the small intestine
3 the duodenum, jejunum, ileum
1.5 meters long
How many lobes are there and which is the largest
4 lobes with the right lobe being the largest
What are the four parts
Cardia, fundus, body, and pylorus
What is the longest part of the system
The lleum at 3.3-3.6 meters long
What is the duodenum
Shortest and most fixed portion of small intestine
What is the cecum
A pouch that is formed at the beginning of the large intestine
Gallstones
When cholesterol precipitates and forms solid crystal they become gallstones
25-30 centimeters longs
What are the building blocks of your digestive system
Carbs, amino acids, nucleotides, fatty acids, and glycerol
What is the jejunum
Middle portion, and more active than lleum
What does the appendix contain
Contains lymphatic tissue, also appendix is not needed in your body
Where is the liver located
In the upper right abdominal quadrant
What does it do
The stomach receives food from the esophagus, and moves food into the small intestine
What regulates the interval environment
Homeostasis
What is the lleum
Distal portion, contain peyer’s patches
What are the 4 layers
mucosa, submucosa, muscularis, serosa
What does the gallbladder store
It stores and concentrates bile
Smooth muscle in the stomach
Inner circular layer, outer longitudinal layer, some portions have third layer of oblique fibers
What are the building blocks used for
Used for energy (catabolism)
What does it receive from the body
Receives chyme from stomach and liver and pancreatic secretions
How many times does peristalsis occur
Produces glycogen from glucose and breaks down glycogen from glucose
Heartburn
stomach contents in esophagus cause inflammation called esophagitis; feels like the pain is derived from the heart