🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

Oral Biology: Salivary Glands
40 Questions
4 Views

Oral Biology: Salivary Glands

Created by
@IlluminatingRomanesque

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of a gland in the body?

  • To aid in digestion
  • To regulate body temperature
  • To produce a chemical secretion necessary for normal body functioning (correct)
  • To produce a chemical reaction
  • What is the classification of glands based on the distribution of their secretion?

  • Apocrine and Merocrine
  • Tubular and Alveolar
  • Endocrine and Exocrine (correct)
  • Simple and Compound
  • What is the shape of the secretory units in salivary glands?

  • Unicellular
  • Alveolar or Acinar
  • Tubuloalveolar or Tubuloacinar (correct)
  • Tubular
  • What is the type of secretion in salivary glands?

    <p>Merocrine</p> Signup and view all the answers

    What is the function of the mesenchyme in salivary glands?

    <p>To divide the gland into lobes and lobules</p> Signup and view all the answers

    What are the two main components of salivary glands?

    <p>Parenchyme and mesenchyme</p> Signup and view all the answers

    How many types of salivary glands are classified based on their size?

    <p>Two</p> Signup and view all the answers

    What is the name of the gland that opens into the oral cavity?

    <p>Salivary gland</p> Signup and view all the answers

    What type of gland is the adult parotid?

    <p>Purely serous</p> Signup and view all the answers

    Which of the following glands is not a minor sublingual gland?

    <p>Submandibular</p> Signup and view all the answers

    What is the correct order of development of salivary glands?

    <p>Formation of bud, formation of chord, branching of chords, formation of lobule</p> Signup and view all the answers

    What induces the overlying epithelium to proliferate in Stage I of salivary gland development?

    <p>Underlying mesenchyma</p> Signup and view all the answers

    What regulates the branching process in Stage III of salivary gland development?

    <p>EGF and its receptors</p> Signup and view all the answers

    What is the result of extensive branching of the terminal ends in Stage IV of salivary gland development?

    <p>Formation of lobules</p> Signup and view all the answers

    What is the role of FGF7 in salivary gland development?

    <p>Stalk elongation</p> Signup and view all the answers

    What is the function of the basal lamina in salivary gland development?

    <p>Separates the bud from the underlying mesenchyme</p> Signup and view all the answers

    During stage V of salivary gland development, what occurs due to different rates of cell proliferation between the outer and inner layers of the epithelial chord?

    <p>Canalization of the chords</p> Signup and view all the answers

    What is the primary function of myoepithelial cells during salivary gland development?

    <p>Muscle contraction to facilitate saliva secretion</p> Signup and view all the answers

    During which week of development do the cords of the submandibular gland canalize and form ducts?

    <p>10-12 weeks</p> Signup and view all the answers

    What is the name of the process by which the terminal secretary acini and intercalated ducts differentiate to form the terminal ends of the branching tree?

    <p>Cytodifferentiation</p> Signup and view all the answers

    How many pairs of major salivary glands are present in human beings?

    <p>3 pairs</p> Signup and view all the answers

    What is the name of the largest salivary gland?

    <p>Parotid gland</p> Signup and view all the answers

    During which week of development do the buds of the parotid gland appear near the angle of the primitive mouth?

    <p>6-8 weeks</p> Signup and view all the answers

    What is the name of the protein involved in the induction of acinar cell differentiation?

    <p>Laminin</p> Signup and view all the answers

    What is the location of the parotid gland?

    <p>Below the external acoustic meatus</p> Signup and view all the answers

    What is the shape of the parotid gland?

    <p>A three-sided pyramid</p> Signup and view all the answers

    What is the length of the parotid duct?

    <p>5 cms</p> Signup and view all the answers

    What is the nerve supply of the parotid gland?

    <p>Auriculotemporal nerve</p> Signup and view all the answers

    What is the weight of the parotid gland?

    <p>15 gms</p> Signup and view all the answers

    What is the lymphatic drainage of the parotid gland?

    <p>Parotid nodes and upper deep cervical nodes</p> Signup and view all the answers

    What is the location of the submandibular gland?

    <p>In the submandibular triangle</p> Signup and view all the answers

    What is the shape of the submandibular gland?

    <p>J-shaped</p> Signup and view all the answers

    What is the weight of the submandibular gland?

    <p>10-15 gms</p> Signup and view all the answers

    What is the name of the duct that drains the submandibular gland?

    <p>Wharton's duct</p> Signup and view all the answers

    Where does the submandibular gland lie in relation to the mylohyoid?

    <p>Deep to the mylohyoid</p> Signup and view all the answers

    What is the shape of the sublingual salivary gland?

    <p>Almond-shaped</p> Signup and view all the answers

    What is the number of excretory ducts in the sublingual salivary gland?

    <p>8-20</p> Signup and view all the answers

    What is the result of obstruction of the ducts draining any salivary gland?

    <p>Retention cyst formation</p> Signup and view all the answers

    What is the name of the retention cyst that occurs in the floor of the mouth due to trauma?

    <p>Ranula</p> Signup and view all the answers

    Which artery supplies the sublingual salivary gland?

    <p>Both lingual and submental arteries</p> Signup and view all the answers

    Study Notes

    Glands and Their Functions

    • Glands are specialized organs that produce and secrete hormones or fluids.
    • Classification based on secretion distribution includes endocrine (directly into bloodstream) and exocrine (through ducts).

    Salivary Glands Structure and Function

    • Secretory units in salivary glands are typically acinar or tubular-shaped.
    • Salivary glands primarily secrete saliva, which aids in digestion and oral health.
    • Mesenchyme supports salivary glands during development, influencing cellular organization and differentiation.

    Components and Classification of Salivary Glands

    • Salivary glands consist of secretory cells and ductal cells.
    • There are three major types of salivary glands based on size: major (larger) and minor (smaller).
    • The gland that opens into the oral cavity is the submandibular gland.

    Parotid Gland Information

    • The adult parotid gland is classified as a serous gland, primarily producing watery secretion.
    • Parotid gland buds appear around the 6th week of development near the primitive mouth.
    • The parotid gland is situated anterior to the ear, has a lobular shape, and its duct is approximately 5 cm long.
    • The parotid gland's nerve supply comes primarily from the glossopharyngeal nerve, and it drains lymph into the deep cervical lymph nodes.
    • The weight of an average parotid gland is around 20 grams.

    Submandibular and Sublingual Glands Information

    • The submandibular gland is located beneath the jaw, is shaped like a horseshoe, and weighs about 7-8 grams.
    • The Wharton's duct drains the submandibular gland and lies superficial to the mylohyoid muscle.
    • The sublingual salivary gland has a flat shape and contains multiple excretory ducts, ranging from 10 to 12.
    • Obstruction of ducts can lead to swelling and the formation of retention cysts in the mouth, known as mucocele.

    Developmental Aspects of Salivary Glands

    • Salivary gland development progresses through several stages;
      • Stage I initiates through overlying epithelial proliferation.
      • Stage III sees the branching process regulated by signaling factors.
      • Extensive branching in Stage IV leads to complex structures of terminal ends.
      • FGF7 plays a crucial role in promoting cell differentiation during development.
    • During Stage V, varying cell proliferation rates result in distinctive inner and outer epithelial layers.
    • Myoepithelial cells function to facilitate secretion from the glands during development.
    • The cords of the submandibular gland canalize around week 12 of gestation.

    Additional Key Points

    • Acinar cell differentiation is induced by specific proteins produced during gland development.
    • Major salivary glands include parotid, submandibular, and sublingual, totaling three pairs in humans.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about the introduction to salivary glands, their classification, secretory units, and structures. This quiz covers the basics of oral biology and is perfect for students of dentistry or biology.

    More Quizzes Like This

    Use Quizgecko on...
    Browser
    Browser