Digestive System Flashcards
What is the GI tract’s pathway?
Starts at the oral cavity, through the pharynx, down the esophagus, crossing the diaphragm to the stomach.
What are the parts in order of the small intestine?
The duodenum, the jejunum, then the ileum.
How many teeth do children have? How many in adults?
20 in children and 32 in adults.
What are the 3 salivary glands and their function?
The produce saliva, digestive enzyme, they are exocrine glands carrying food saliva the oral cavity . They are the parotid, submandibular and sublingual glands.
What is the tongues function?
The tongue has papillae that helps with the breakdown of food and taste receptors connected to cranial nerves.
What is the esophagus made of?
It is a smooth muscle tube and has 2 muscles, circular muscle and longitudinal muscle.
What is bolus and it’s pathway down the esophagus?
The circular muscle will contract sending bolus (chewed up food) squeezing the lumen and longitudinal muscle contracts in a wave length motions.
What are the main regions of the stomach?
The fundas, the cardia, the body, the pyloric atrum, pyloric canal and the lessor/greater curvature.
What is the rugae of mucosa?
It is full of gastric glands and produce mucus, the cells in them produce hydrochloric acid, intrinsic factor, and digestive enzymes.
What is the small intestines function?
It’s function is absorption where nutrients are absorbed.
Why is the large intestines function important?
For water absorption and vitamins.
What is the job of sphinters?
A sphinter keeps the food from traveling backwards, the ileocecal sphinter.
What is the pathway from the cecum to the anus?
The cecum, ascending colon, right colic flexture, transverse colon, left colic flexture, descending colon, sigmoid colon to the rectum, anal canal and anus.
What is the anus’ voluntary and involuntary control?
The involuntary control is the internal anal sphinter and the voluntary control is the external anal sphinter.
What are the 3 parts of the pancreas and their function?
The head, body and tail. It has ducts carrying products into the duodenum.
