WorksheetsLecture Objectives and Lip Histology
Total questions: 10
Worksheet time: 5mins
Which statement best characterizes the vermilion border of the lip?
Middle layer composed of orbicularis oris muscle fibers
Outer skin surface with hair follicles and glands
Inner mucosal surface with nonkeratinized epithelium
Transition zone with partially keratinized epithelium
In the diagram showing the dorsum of the tongue, which papilla type is most numerous on the anterior two-thirds and lacks taste buds?
Foliate papillae with abundant taste buds
Circumvallate papillae with many taste buds
Filiform papillae with no taste buds
Fungiform papillae with few taste buds
A histological section displays a large, round papilla surrounded by a deep circular groove with adjacent serous glands. Which feature best identifies this papilla?
Circumvallate papilla near V-shaped line
Small foliate papilla posteriorly
Fungiform papilla on tongue margins
Filiform papilla with conical tip
Which statement best distinguishes serous acini from mucous acini in major salivary glands?
Serous acini are smaller, rounded, with narrow lumens
Serous acini have flat basal nuclei and pale cytoplasm
Serous acini show basal eosinophilia and apical basophilia
Serous acini are lined by cuboidal cells with vacuolated cytoplasm
Serous acini are larger, variable, with wide lumens
Which duct type directly connects to acini within lobules and is lined by simple cuboidal epithelium?
Intercalated duct inside lobules, simple cuboidal
Interlobular duct between lobules, simple columnar
Interlobar duct between lobes, pseudostratified columnar
Main duct to mouth, stratified squamous lining
Striated duct intralobular, stratified columnar
A patient undergoes radiotherapy causing decreased major salivary gland function. Which combination of outcomes is most likely?
Increased caries, mucosal atrophy, speech difficulties
Enhanced taste, increased saliva, improved swallowing
Parotid hypertrophy, thicker saliva, improved mastication
Hyperkeratosis, periodontal regeneration, reduced caries
Xerostomia only, without oral mucosal changes
Which statement best characterizes the secretory units of the parotid gland?
They are purely serous acini with narrow lumina
They are purely mucous acini with wide lumina
They are mixed acini with serous demilunes
They are endocrine follicles with central colloid
A duct lined by simple cuboidal cells continuous with serous acini primarily secreting Parotin is identified. Which duct is this?
Striated intralobular duct of parotid
Main Stensen’s duct near oral opening
Interlobular excretory duct of parotid
Intercalated duct of the parotid gland
Which statement best distinguishes mixed mucoserous acini in submandibular versus sublingual glands?
Sublingual have serous acini capped by mucous demilunes
Submandibular have mucous acini capped by serous demilunes
Submandibular have more serous demilunes overall abundance
Sublingual lack demilunes forming around mucous acini
In a histologic section dominated by pale mucous acini, where should you look to identify the demilunes of Giannuzzi?
Along the intercalated duct epithelium nearby
Within the central lumen of each mucous acinus
As crescent serous cells capping mucous acini peripherally
At the basal lamina outside the entire lobule
