Q: Which formula correctly represents the relationship between tissue, organ, and organ system?

$$\text{Organ} = \sum_{i=1}^{n} \text{Tissue}_i$$

Question 1

Which of the following best describes the main structural difference between epithelial tissue and connective tissue proper?

Accepted Answer

Epithelial tissue consists of tightly packed cells with little extracellular matrix, while connective tissue proper has fewer cells and abundant extracellular matrix.

Question 2

A patient suffers an aortic aneurysm. Which type of connective tissue proper is most likely affected?

Accepted Answer

Elastic connective tissue

Question 3

Which of the following is NOT a useful way to classify epithelial tissue?

Accepted Answer

Finding the location of the nuclei in the cell

Question 4

Which statement about the extracellular matrix (ECM) and ground substance (GS) is TRUE?

Accepted Answer

The ECM is made up of ground substance and fibers.

Question 5

Which type of epithelial tissue would you expect to find lining the stomach, and what is its primary function?

Accepted Answer

Simple columnar epithelium; secretion and absorption

Question 6

Which of the following cell types is primarily responsible for producing collagen fibers in connective tissue proper?

Accepted Answer

Fibroblasts

Question 7

A tissue sample shows cells with apical and basal polarity, tightly packed together, and no blood vessels present. What type of tissue is this most likely to be?

Accepted Answer

Epithelial tissue

Question 8

Which connective tissue proper type provides the greatest resistance to multidirectional stress due to its irregular arrangement of collagen fibers?

Accepted Answer

Dense irregular connective tissue

Question 9

Which of the following is a function of areolar connective tissue?

Accepted Answer

Supports and binds other tissues, and holds body fluids

Question 10

Which type of junction is most important for preventing leakage between epithelial cells in the lining of the intestine?

Accepted Answer

Tight junctions

Question 11

A biopsy reveals a tissue with multiple layers of flat cells. Which type of epithelium is this, and where is it commonly found?

Accepted Answer

Stratified squamous epithelium; skin epidermis

Question 12

Which formula correctly represents the relationship between tissue, organ, and organ system?

Accepted Answer

$$	ext{Organ} = \sum_{i=1}^{n} 	ext{Tissue}_i$$

Question 13

Which connective tissue proper type contains the highest proportion of elastic fibers, allowing it to stretch and recoil?

Accepted Answer

Elastic connective tissue

Question 14

Which of the following is a characteristic unique to epithelial tissue compared to connective tissue proper?

Accepted Answer

Polarity (apical and basal surfaces)

Question 15

A tissue sample contains fibrocytes, collagen fibers, and a moderate amount of ground substance. Which type of connective tissue proper is this most likely to be?

Accepted Answer

Areolar connective tissue

Question 16

Which of the following best explains why epithelial tissue relies on diffusion for nutrient supply?

Accepted Answer

Epithelial tissue is avascular and nutrients diffuse from underlying connective tissue.

Question 17

Which cell type in connective tissue proper is most involved in immune defense?

Accepted Answer

Macrophages

Question 18

Which of the following formulas best represents the composition of the extracellular matrix (ECM) in connective tissue proper?

Accepted Answer

$$	ext{ECM} = 	ext{Ground Substance} + 	ext{Fibers}$$

Question 19

Which type of connective tissue proper forms the supporting framework for lymphoid organs such as the spleen and lymph nodes?

Accepted Answer

Reticular connective tissue

Tissues: Structure, Function, and Classification of Epithelial and Connective Tissue Proper

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