Teeth+development, oral cavity & esophagus

Generate an image of a human mouth showing teeth, tongue, and oral cavity anatomy, with labeled parts illustrating different types of teeth and oral structures, in a medical illustration style.

Teeth and Oral Anatomy Quiz

Test your knowledge of the intricate details regarding teeth development and the anatomy of the oral cavity and esophagus. This quiz features a comprehensive range of questions designed for students and professionals alike.

Key Features:

38 Engaging Questions
Multiple Choice and Checkbox Formats
Covers Essential Topics in Dental and Oral Health

38 Questions10 MinutesCreated by ExaminingTooth24

The oral cavity is lined with?(single choice)

Simple cuboidal epithelium

Columnar epithelium with cilia

Stratified squamous epithelium

Columnar epithelium

The stratified squamous epithelium lining the oral cavity may be?

Only stratified squamous epithelium nonkeratinized

Stratified squamous epithelium nonkeratinized & kertinized

Stratified squamous epithelium nonkeratinized & keratinized

Stratified squamous epithelium partially keratinized

What is true about flattened superficial cells of the oral epithelium?

Undergo continuous desquamation (loss at the surface)

Do not undergo continuous desquamation (loss at the surface)

The shed cells of nonkeratinized or parakeratinized oral epithelium retain their nuclei

The shed cells of nonkeratinized or parakeratinized oral epithelium do not retain their nuclei

The keratinized cell layer in oral epithelium is best developed in? (singel choice)

Lining mucosa

Red vermilion zone

Masticatory mucosa

Lamina propria

What is true about the epithelium in the oral cavity?

Contains stem cells

Rich motor innervation

Contains transient antigen-presenting cells

Rich sensory innervation

What is true about the lips?

Both lips have three differently covered surfaces

The internal mucous surface has lining mucosa with, thick, non keratinized epithelium and many minor labial salivary glands

The red vermilion zone of each lip is covered by thick keratinized stratified squamous epithelium

The outer surface has thin skin, consisting of epidermal and dermal layer, sweat glands, and many hair follicles with sebaceous glands

What is true about the red vermilion zone of the lips

Is covered by thick keratinized stratified squamous epithelium

Is covered by very thin keratinized stratified squamous epithelium

Is transitional between the oral mucosa and skin

Contains salivary- and sweat glands

Lacks salivary- and sweat glands

Kept moist with saliva from tongue

Have no underlying CT

The underlyning CT is very rich in both sensory innervation and capillaries.

The lingual papillae:

Are elevations of the mucous membrane

There are three types

There are four types

They assume various forms and functions

Foliate papillae:

Parallel ridges on each side of the tongue, best developed in children

Posterior to the sulcus terminalis

Rudimentary in humans, especially older individuals

Taste buds are present

Vallate (circumvallate) papillae:

Largest papillae

8-12 vallate papillae are normally aligned just in front of the terminal sulcus

Taste buds are most abundant

What is true about taste buds?

Ovoid structures within the stratified epithelium on the tongues surface

Present in keratinized filiform papillae

Has 50-100 cells

About 50% of the cells are elongated gustatory (taste) cells.

Gustatory (taste) cells have a 7- to 10 days life span

Supportive cells are present

Basal stem cells are present

Each bud rest on basal lamina

Taste buds can detect at least five broad categories of tastants, pair correctly:

Sodium ions- salty

Hydrogen ions form acid- sour

Sugar and related compounds - sweet

Alkaloids and certain toxins- bitter

Amino acids such as glutamate and aspartate - umani

Where does odontoblast derive from?

The cranial neural crest that line the tooth´s pulp cavity

Mesenchyme of the developing pulp cavity

What is true about odontoblast?

Important for the maintenance of dentin matrix

Do not continue predentin production into adult life

Stimulated to repair dentin if tooth is damaged

Specialized for collagen and GAG synthesis

What is true about Enamel?

Hardest component of the human body

Contains collagen

96% calcium Hydrixyapatite

Contains many proteins

In a developing tooth bud:

The matrix for enamel is secreted by ameloblasts

Ameloblasts are a part of specialized epithelium in the tooth bud called enamel organ

Ameloblast:

Derive for the ectodermal lining of the embryonic oral cavity

Secreted a matrix lacking collagens

Mark the correct sentences about von Ebner ̝s glands:

Teeth:

Dental pulp contains odontoblasts

Dental pulp is highly vascularized

Dental pulp consists of collagen fibrils

Enamel is mostly composed of calcium hydroxyapatite

Dental pulp consists of fibroblasts

The organic matrix of dentin contains only type III collagen

The organic matrix of dentin contains only type I collagen

Oral cavity:

Striated muscle in the lips makes these structures highly mobile for ingestion and speech

The hard palate and gingiva are lined with stratified squamous keratinized epithelium

Circumvallate papillae are associated with salivary glands

Taste buds contain gustatory cells

Taste buds contain supportive cells

Ducts of von ebner glands surround filiform papillae

Skin part of lip contain sebaceous glands

Oral cavity:

Each part is lined with keratinizied stratified squamous epithelium

Taste buds contain lipase that prevents the formation of hydrophobic film

Foliate papillae are poorly developed in human

Periodontal ligament is highly calcified connective tissue

There are taste buds in circumvallate papillae

The dentin of teeth crown is covered with cementum

Skin part of lip does not contain sebaceous glands

Vallate papilla contains lipase which prevents the formation of hydrophobic film

Root formation:

Takes place as the crown is completely shaped

Root dentin is influenced by Hertwigs root sheath

Takes place before the appostitional stage of the crown

Include the synthesis of enamel

Is through the formation of the cervical loop

Tooth formation (odontogenesis)

The first stage is formation of dental lamina

Also cap and bell stage are recognized

Odontoblasts and dentin are derivatives of enamel organ

Origin of dentin is mesenchyme

Origin of enamel is ectoderm

The lip:

Does not contain any glands

Skin region is covered by non-keratinized epithelium

Labial glands are present in the red lip region

The core is composed of skeletal muscle

It has sebaceous and seromucous glands

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Teeth and Oral Anatomy Quiz

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