lab 10 & 12 Flashcards
digestion of carbohydrates
test 4: add amylase in ice bath 4 mins then add starch
incubate at 37 C
digestion of proteins
test 3: add trypins and heating block for 4 mins
place in ice bath for 1 hr at incubate 37 c
digestion of fats
for test 2: add pancreatin and place in heating bloock 4 mins then add litmus cream
cover n shake and put in ice bath for 1 hr incubate at 37c
What are the main components of the gastrointestinal (GI) tract?
Oral cavity, pharynx, esophagus, stomach, small intestine, large intestine.
What are the accessory organs of the digestive system?
Salivary gland, liver, gall bladder, pancreas.
What are the components of the oral cavity?
Mucus membrane, tongue, teeth, gingivae.
What is the hard palate?
- Anterior portion of the roof of the oral cavity
Hard due to underlying palatine bones and palatine processes of maxillae
What is the soft palate?
- Posterior portion of the roof of the oral cavity
Muscular, with no bone underneath
Rises to close off the nasopharynx when swallowing
What is the superior lip?
Forms the upper portion of the anterior opening into the oral cavity
What is the superior labial frenulum?
Attaches the upper lip to the gums
What are the fauces?
The posterior opening of the oral cavity into the oropharynx
What is the inferior labial frenulum?
Attaches the lower lip to the gums
What is the vestibule in the oral cavity?
The space between the lips, cheeks, and teeth
vestibule
The space between the lips, cheeks, and teeth
What is the function of the cheek in the oral cavity?
Forms the lateral walls of the oral cavity
What is the tongue composed of, and what are its functions?
- Composed of skeletal muscle
Lies in the floor of the oral cavity
Helps mix food, swallow, and produce speech
Location of the majority of taste buds
What is the lingual frenulum?
Attaches the body of the tongue to the floor of the mouth
What is the gingiva?
- Commonly called the gum
Mucous membrane surrounding the base of the teeth
What is the inferior lip?
Forms the lower portion of the anterior opening into the oral cavity
Where are the teeth located?
In the upper and lower jaw
What is the gingivae or teeth
The mucous membrane surrounding the base of the teeth, commonly known as the gums
What is the crown of a tooth?
- The portion of a tooth that is visible
Located above the gum line
What are incisor teeth, and what are they designed for?
- Have a narrow edge, like a knife blade
Designed for cutting and biting
What is a cuspid tooth, and what is it also called?
- Also called an eye tooth or canine tooth
Has a single point
Designed for biting