3-L1

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What is the main function of stereocilia?

Excretion

Absorption (correct)

Secretion

Protection

Where are stereocilia typically found?

Skin epithelium

Female reproductive tract

Male reproductive tract (correct)

Intestinal epithelium

What is the characteristic adaptation of the skin for protection?

Pseudostratified columnar epithelium

Keratin layer (correct)

Microvilli

Stereocilia

Which of the following has the thickest keratin layer?

Sole of the foot (D) Signup and view all the answers

What type of epithelium is present in the epididymis?

Pseudostratified columnar epithelium (D) Signup and view all the answers

What is the primary function of stratified squamous epithelium?

Protection against abrasion (C) Signup and view all the answers

What happens to cells lost by abrasion at the surface of stratified epithelium?

They are replaced by cells underneath (D) Signup and view all the answers

What is the location of cell division in stratified epithelium?

Near the basement membrane (D) Signup and view all the answers

What is the classification of stratified epithelium based on?

Cell shape of the superficial layer (C) Signup and view all the answers

What is the morphology of the top layer in stratified squamous epithelium?

Flat (C) Signup and view all the answers

What shape are the lower cells in stratified squamous epithelium?

Roughly polygonal (C) Signup and view all the answers

As cells migrate towards the surface in stratified squamous epithelium, what happens to their shape?

They become flattened (B) Signup and view all the answers

Where is stratified squamous epithelium typically found?

In areas requiring protection (C) Signup and view all the answers

What type of epithelium is found in the mouth, esophagus, and vagina?

Stratified squamous non-keratinized epithelium (B) Signup and view all the answers

What characteristic is retained by the flattened cells of the epithelium surface layer in stratified squamous non-keratinized epithelium?

Their nuclei (A) Signup and view all the answers

What is the main function of the transitional epithelium?

To protect the underlying tissues from osmotic damage (D) Signup and view all the answers

What is the name given to the transitional epithelium due to its presence in the urinary system?

Urinary epithelium (B) Signup and view all the answers

What is the characteristic of the superficial layer of the urothelium when the bladder is empty?

It has umbrella cells (B) Signup and view all the answers

How does the shape of the surface cells of the transitional epithelium change when the epithelium is stretched?

They become flatter (A) Signup and view all the answers

What is the reason transitional epithelium received its name?

Because it represents a transition stage between stratified and squamous epithelium (B) Signup and view all the answers

What is the main function of cilia on the surface of epithelial cells?

To move materials or objects over the surface of the epithelium (A) Signup and view all the answers

Which type of cells lack cilia in the epithelium?

Goblet cells (B) Signup and view all the answers

What is the primary function of microvilli on the surface of epithelial cells?

To increase the surface area of the cell for absorption (A) Signup and view all the answers

Where are microvilli often referred to as a 'brush border'?

In the small intestine and proximal convoluted tubule of the kidney (C) Signup and view all the answers

What is the shape of microvilli on the surface of epithelial cells?

Finger-like projections (B) Signup and view all the answers