Epithelium Moodle quiz

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Questions and Answers

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A group of organised cells working together forms tissue. An organised group of the latter work together to form organs

What is the tissue that covers a body surface of lines a body cavity, forms parts of most glands is known as what?

Epithelium

What three features are used to classify epithelia?

Number of cell layers: stratified or simple. Cell shape: squamous, columnar, or cuboidal. Specialisations: presence of microvilli or cilia

What shapes of epithelial cells are found on the surface of epithelia?

Squamous (flat), cuboidal (cube like) columnar (tall and column like) Signup and view all the answers

What specialisations are found on the apical surface of epithelial cells and their function?

Microvilli: increase surface area for absorption. Cilia: move substance across the cell surface Signup and view all the answers

What are the two specialised forms of epithelia?

Glandular epithelium, sensory epithelium Signup and view all the answers

What separates an epithelium from the underlying connective tissue?

The basement membrane Signup and view all the answers

What are the function of epithelium?

Protects underlying tissues (A), Absorbs nutrients and other substances (B), Epithelial cells are responsible for secretion (C), Epithelial aids in excretion (D) Signup and view all the answers

What are characteristics of epithelium?

Highly cellular (A), Epithelium is attached to basement membrane (B), Epithelial cells is a vascular (C), Cells have an apical surface and basal surface (D) Signup and view all the answers

What epithelium lines the oral cavity?

The stratified squamous epithelium, non-keratinised or keratinised Signup and view all the answers

What epithelium covers the hard palate and the tongue and the external surface of the gingiva?

The keratinised stratified squamous epithelium Signup and view all the answers

What epithelium is found within salivary glands?

Simple cuboidal, or simple columnar epithelium Signup and view all the answers

What membrane is found inside the oral cavity?

The oral mucosa is the membrane found inside the oral cavity Signup and view all the answers

What is the difference between an endocrine gland and exocrine gland?

Endocrine glands release hormones directly into the bloodstream without the use of ducts e.g. thyroid gland. Endocrine glands secrete substances through ducts to an epithelial surface as seen in salivary glands Signup and view all the answers

Flashcards

What is tissue?

A group of organised cells working together.

What is Epithelium?

Tissue that covers body surfaces, lines cavities, and forms glands.

How is epithelia classified?

Number of cell layers (simple/stratified), cell shape (squamous/cuboidal/columnar), and specializations (cilia/microvilli).