2-L1

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What is the main function of basement membranes in epithelial tissues?

Secreting mucus for protection

Providing structural support and polarity to epithelial cells (correct)

Regulating cell migration along epithelia

Transporting substances from the epithelium to the connective tissue

Which type of epithelium is responsible for protecting underlying tissue from wear?

Stratified epithelium (correct)

Pseudostratified epithelium

Columnar epithelium

Simple squamous epithelium

Why is pseudostratified epithelium called pseudostratified?

Because it secretes mucus for protection

Because only some cells reach the surface, giving the appearance of multiple layers (correct)

Because it has multiple layers of cells

Because it is found in multiple locations in the body

What is the role of cilia in simple columnar epithelium?

To help move substances along the surface Signup and view all the answers

What is the function of proteins in the basement membrane of epithelial cells?

Helping organize proteins in the plasma membrane of epithelial cells Signup and view all the answers

Which type of epithelial tissue allows for diffusion, filtration, secretion, and absorption to occur?

Simple squamous epithelium Signup and view all the answers

What role do basal lamina components play in epithelial tissues?

Mediating cell-to-cell interactions and marking routes for cell migrations Signup and view all the answers

What is the main feature of epithelial tissue in terms of cell arrangement?

Closely packed cells with little extracellular material Signup and view all the answers

Where is the apical surface of epithelial cells typically located?

Facing the body cavity or lining of internal organs Signup and view all the answers

How do epithelia adhere to nearby connective tissue?

Via a basement membrane Signup and view all the answers

Why do epithelia have a high capacity for renewal?

Since they are subjected to wear and tear Signup and view all the answers

What type of tissue do most epithelia rest on?

Connective tissue Signup and view all the answers

How is the area of contact between epithelium and connective tissue increased?

Via irregularities at the interface known as papillae Signup and view all the answers

What is the role of the basement membrane in epithelial tissues?

To attach epithelium firmly to nearby connective tissue Signup and view all the answers

Where are ciliated rectangular cells typically found?

Kidney tubules Signup and view all the answers

What is the main function of ciliated rectangular cells?

Aids in movement Signup and view all the answers

Which type of epithelial tissue is capable of renewal at a high rate?

Epithelial tissue Signup and view all the answers

What is the main function of epithelial cells with a flattened disk-shaped nucleus?

Aid in diffusion Signup and view all the answers

What distinguishes pseudostratified epithelia from other epithelial tissues?

Presence of multiple layers Signup and view all the answers

What feature do ependymal cells in the brain ventricle and spinal cord have?

Secrete mucus Signup and view all the answers

Which structure is electron-dense, 20-100 nm thick, and consists of a network of fine fibrils?

Basal lamina Signup and view all the answers

Where is the reticular lamina located in relation to the basal lamina?

Beneath the basal lamina Signup and view all the answers

Which organ does not typically contain ciliated rectangular cells?

Heart Signup and view all the answers

Which type of epithelium has cells that are cubelike in shape?

Simple cuboidal epithelium Signup and view all the answers

What differentiates simple columnar epithelium from pseudostratified epithelia?

Nuclei arrangement Signup and view all the answers

What type of epithelium has cells with about the same height and width and a spherical nucleus?

Ciliated simple columnar epithelium Signup and view all the answers

Which structure binds the basal surface of epithelial cells to the basal lamina?

Hemidesmosomes Signup and view all the answers

In which location can you find mesothelium in the body?

Lining of body cavities Signup and view all the answers

What is the term used to describe an increase in the rate of cell division?

Hyperplasia Signup and view all the answers

In compensatory reactions, if one kidney is removed, what happens to the other kidney?

It increases in size Signup and view all the answers

What happens to the number of filtration units during aging hyperplasia?

It remains the same Signup and view all the answers

Which type of epithelium is characterized by a single layer of nonciliated rectangular cells?

Non-ciliated simple columnar epithelium Signup and view all the answers

Where is non-ciliated simple columnar epithelium found in the body?

Gallbladder Signup and view all the answers

What function does non-ciliated simple columnar epithelium perform?

Absorption and secretion Signup and view all the answers

Which organ(s) belong to the male reproductive tract and contain non-ciliated simple columnar epithelium?

Seminal vesicles and Epididymis Signup and view all the answers

What characteristic enables abnormal growth (cancer) cells to detach easily from a tumor and spread to other parts of the body?

Altered adhesive properties Signup and view all the answers

What term describes the process where cancer cells spread to other parts of the body?

Metastasis Signup and view all the answers