Digestive System Anatomy Flashcards
what is…
motility:
secretion:
motility: getting food where it should be
secretion: digestive enzymes
the digestive system utilized both _____ and _____ digestion.
mechanical and chemical
most of the digestive system is under ______ control.
autonomic
What are the accessory organs in digestion?
salivary glands, pancreas, liver, and gallbladder
What type of tissue would you expect to find covering the organs and inside surface of the abdominal cavity?
Filtration membrane
what is the peritoneum?
the serous membrane that lines the abdominal cavity and cover abdominal organs
membranes include what three layers?
epithelial layer
areolar layer
basement membrane
when is mucous vs serous membranes used?
mucous- lining passages to outside world
serous- lines interior cavities of our body
what is the peritoneal cavity
the space between the parietal and visceral peritoneum (abdominal cavity)
what are mesenteries?
double layer of serous (fat) tissue suspending organs within the abdominal cavity
space where arteries, veins, and nerves travel to go to and from organs
What is the Greater Omentum?
several layers of peritoneum storing fat providing insulation and layers of cushioning
The GI tract has four layers.
Innermost layer of GI tract is mucosa- in earlier parts of GI tract is more about protection
surrounding that is submucosa- glands secrete into lumen
surrounding that is muscularis layer- muscles squeezing food through
Outer layer- serosa (visceral peritoneum)- adhered to outer layer of abdominal organs
Which layer is the nerve plexus in?
the submucosa
the muscular layer helps with motility via _________.
paristalsis
Inner layer is circular layer _________, longitudinal layer running up and down, ______ small region of intestine. This creates peristalsis
squeezing; shortening
