Topic 15 - Digestive system (C) Flashcards
Digestive system structures:
- Oral cavity
- Salivary glands
- Dentition (teeth)
- Oropharynx and Laryngopharynx
- Esophagus
- Stomach
- Small intestine
- Small intestine accessory organs
- Large intestine
Oral cavity
includes:
- lips
- cheeks
- palate
- hard palate
- soft palate (posterior to hard palate)
- tongue
oral cavity
includes palate:
hard palate
2 maxillae + 2 palatine bones
oral cavity
includes palate
soft palate:
- posterior to:
- ______ muscle
- ________ projection called ______
- rises to…
- posterior to hard palate
- skeletal muscle
- posterior projection = uvula
- rises to close the nasopharynx when swallowing
oral cavity
tongue
- attached to?
- _______ muscle
- projections of _______ = papillae (taste buds)
- attached to hyoid bone
- skeletal muscle
- projections of mucosa = paillae (taste buds)
Oral cavity:
EVERYTHING
Salivary glands:
- how many pairs and what are they called?
- saliva
- composed of what and list the percentage
- 3 pairs
- parotid
- submandibular
- sublingual
- saliva
- 99.5% water
- 0.5 solutes (enzymes)
salivary glands
3 pairs: parotid
- inferior and anterior to ears
- mumps = inflammation of 1 or both parotids
salivary glands
3 pairs: submandibular
floor of mouth
salivary glands
3 pairs: sublingual
below tongue on floor of mouth
- inferior and anterior to ears
- mumps = inflammation of 1 or both parotids
salivary glands
3 pairs: parotid
floor of mouth
salivary glands
3 pairs: submandibular
below tongue on floor of mouth
salivary glands
3 pairs: sublingual
saliva is composed of what and list the percentage
- 5% water
- 5% solutes
dentition
- located where?
- child dentition
- _____ dentition - ______ (“baby”) teeth
- adult dentition
- _____ dentition - ______ teeth
tooth structure
- crown
- root
- neck
- periodontal ligaments
- root canal extends to pulp cavity
dentin, enamel & cementum = similar to _____, but ______
similar to bone, but avascular
tooth structure:
crown
- above…
- dentin = ?
- enamel overlay = ?
- above the gym
- dentin = majority of tooth
- enamel overlay = acellular, highly calcified - hard
tooth structure
root
dentin + cementum overlay
tooth structure
neck
enamel + cementum boundary (gums)
tooth structure
periodontal ligaments
attach root to bones
tooth structure
root canal extends to pulp cavity
contains CT, blood/lymph vessels, and nerves
oropharynx and laryngopharynx
only muscularis externa (skeletal muscle) and stratified squamous epithelium
