Q: Which equation correctly represents the relationship between the number of layers ($$n) in an $$epithelial tissue and its classification as simple or stratified?

$$n = 1 \implies \text{simple epithelium}$$

Question 1

Which of the following best describes the function of simple squamous epithelium in the alveoli of the lungs?

Accepted Answer

Diffusion of gases between air and blood

Question 2

A tissue sample from the epidermis is examined under a microscope. The cells are flat, scale-like, and arranged in multiple layers. Which type of epithelial tissue is this?

Accepted Answer

Stratified squamous, keratinized epithelium

Question 3

Which structural characteristic is common to all types of epithelial tissue?

Accepted Answer

Attachment to a basement membrane

Question 4

A patient has damage to the transitional epithelium lining the bladder. Which function is most likely to be impaired?

Accepted Answer

Stretching to accommodate bladder filling

Question 5

Which equation correctly represents the relationship between the number of layers ($$n) in an $$epithelial tissue and its classification as simple or stratified?

Accepted Answer

$$n = 1 \implies 	ext{simple epithelium}$$

Question 6

Which of the following is NOT a function of nervous tissue?

Accepted Answer

Absorbing nutrients from the digestive tract

Question 7

A histology slide shows cells with microvilli on their apical surface, arranged in a single layer in the small intestine. What is the main function of this tissue?

Accepted Answer

Absorption of nutrients

Question 8

Which of the following best explains why epithelial tissues are avascular but innervated?

Accepted Answer

Epithelial cells receive nutrients via diffusion from underlying connective tissue

Question 9

A researcher observes a tissue with cilia and goblet cells lining the trachea. Which type of epithelial tissue is present?

Accepted Answer

Pseudostratified columnar epithelium

Question 10

Which of the following cell types is most likely to be found lining kidney tubules and is specialized for secretion and absorption?

Accepted Answer

Simple cuboidal epithelial cells

Question 11

Which of the following best describes the role of desmosomes in epithelial tissue?

Accepted Answer

Form specialized contacts that anchor neighboring cells together

Question 12

A tissue sample from the esophagus is examined and found to be composed of multiple layers of flat cells that are not keratinized. What is the primary function of this tissue?

Accepted Answer

Protection against abrasion

Question 13

Which of the following correctly matches the location and function of simple columnar epithelium?

Accepted Answer

Small intestine; absorption and secretion

Question 14

Which of the following equations best represents the relationship between the number of nuclei ($$N) $$per cell and the classification of pseudostratified columnar epithelium?

Accepted Answer

$$N = 1$$ per cell, but nuclei are at different heights

Question 15

Which of the following is a key difference between simple and stratified epithelial tissues?

Accepted Answer

Simple epithelium consists of a single layer of cells, while stratified consists of two or more layers

Question 16

Which of the following best describes the function of glial cells in nervous tissue?

Accepted Answer

Support and protect neurons

Question 17

A tissue sample from the bladder shows cells that change shape from dome-like to flat as the bladder fills. Which type of epithelial tissue is this?

Accepted Answer

Transitional epithelium

Question 18

Which of the following is the correct sequence for the flow of electrical signals in a neuron?

Accepted Answer

Dendrite $$\rightarrow$$ cell body $$\rightarrow$$ axon

Question 19

Which of the following best explains why stratified squamous epithelium is found in areas subject to abrasion, such as the esophagus and skin?

Accepted Answer

Multiple layers provide increased protection against mechanical stress

Epithelial and Nervous Tissues: Structure, Function, and Identification

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