Flashcards in Chapter 25 Deck (140)
Accessory digestive organs
Teeth, tongue, gallbladder, liver, pancreas, salivary glands
6 digestive processes
eating or drinking nutrients.
movement of the ingested material from the mouth through the GI tract to the anus
breaking down the food by physical means, such as chewing
breaking down the nutrients in basic units that can be absorbed
moving nutrients across the basement membrane of the mucous membrane into the blood of lymph by active or passive transport processes.
excretion of food content that cannot be broken down and absorbed in the GI tract
what controls the digestive system?
the 2 groups of organs in the digestive system
- Alimentary canal (gastrointestinal or GI tract)
- Accessory Digestive Organs
organs of alimentary canal
Mouth, pharynx, esophagus, stomach, small intestine, and large intestine
what do mechanoreceptors and chemoreceptors respond to?
stretch, change in osmolarity and presence of substrate and end products of digestion
the serous membrane that lines the peritoneal cavity
function of the peritoneum
to hold organs in place and store fat
4 layers of the alimentary canal
- Muscularis External
functions of the mouth
- Propulsion (into pharynx)
- Mechanical digestion
- Chemical digestion (amylase)
function of hard palate
helps with chewing and formation of bolus
what does the soft palate do during swallowing?
closes off the nasopharynx
function of the tongue
Repositions and mixes food during chewing
where is the tongue attached to?
the lingual frenulum
term for dry mouth
how many baby teeth do we have
how many permanent teeth do we have?
word for baby teeth
which teeth do grinding?
which teeth do tearing?
which teeth do cutting?
where does the esophagus run from?
laryngopharynx to stomach