Q: Which of the following equations best represents the relationship between tissue regenerative capacity ($$R) $$and tissue type ($$T$$)?

$$R(T) = \text{high}$$ for epithelial, bone, areolar, dense irregular, and blood-forming tissue; $$R(T) = \text{moderate}$$ for smooth muscle and dense regular; $$R(T) = \text{low}$$ for cardiac muscle and nervous tissue

Question 1

Which of the following best describes the primary function of epithelial tissue in the human body?

Accepted Answer

It forms boundaries between different environments and is specialized for protection, secretion, absorption, and filtration.

Question 2

A patient presents with a wound that is slow to heal. Which tissue type is most likely responsible for producing the collagen necessary for scar tissue formation during the healing process?

Accepted Answer

Fibroblasts

Question 3

Which of the following equations best represents the relationship between the number of cell layers ($$n) $$and the type of epithelial tissue?

Accepted Answer

$$n = 1$$ \rightarrow$$ Simple epithelium; n$$ \geq 2$$ \rightarrow$$ Stratified epithelium

Question 4

A newborn is diagnosed with a genetic disorder affecting the ground substance of connective tissue, leading to poor bone mineralization. Which component is most likely deficient?

Accepted Answer

Proteoglycans

Question 5

Which of the following best explains why simple squamous epithelium is found in the air sacs of the lungs?

Accepted Answer

It allows for rapid diffusion of gases due to its thin, flat structure.

Question 6

A 17-year-old male develops oily skin and frequent acne outbreaks. Histology shows that the responsible gland releases its product by complete cell rupture, with cells replaced by mitosis of basal cells. What type of secretion is this?

Accepted Answer

Holocrine

Question 7

Which of the following best describes the extracellular matrix (ECM) of connective tissue?

Accepted Answer

It consists of ground substance and fibers, providing structural and biochemical support to surrounding cells.

Question 8

A patient with generalized edema has fluid accumulation in the interstitial spaces. Which loose connective tissue is most directly responsible for regulating this extracellular water balance?

Accepted Answer

Areolar connective tissue

Question 9

Which of the following best explains the difference between epithelial and connective tissues?

Accepted Answer

Epithelial tissues are avascular and have tightly packed cells, while connective tissues are vascular and have scattered cells surrounded by a large amount of extracellular matrix.

Question 10

A patient with rheumatoid arthritis experiences inflamed synovial membranes. Which specialized cells secrete synovial fluid?

Accepted Answer

Synoviocytes

Question 11

Which of the following best describes the function of pseudostratified ciliated columnar epithelium in the respiratory tract?

Accepted Answer

Secretion and mucociliary clearance of debris and pathogens

Question 12

A patient with chronic bronchitis develops squamous metaplasia in the trachea. What is the significance of this change?

Accepted Answer

It protects against chronic irritation but sacrifices mucus secretion and ciliary function.

Question 13

Which of the following best illustrates the principle of structure–function complementarity in the context of airway remodeling in chronic lung disease?

Accepted Answer

Loss of cilia and goblet cells impaired clearance, and structural change resulted in reduced elasticity and function declined.

Question 14

Which force drives fibrosis in the lamina propria beneath the airway epithelium in chronic inflammation?

Accepted Answer

Fibroblast proliferation and collagen deposition during chronic inflammation

Question 15

Which of the following equations best represents the relationship between tissue regenerative capacity ($$R) $$and tissue type ($$T$$)?

Accepted Answer

$$R(T) = 	ext{high}$$ for epithelial, bone, areolar, dense irregular, and blood-forming tissue; $$R(T) = 	ext{moderate}$$ for smooth muscle and dense regular; $$R(T) = 	ext{low}$$ for cardiac muscle and nervous tissue

Question 16

Which of the following best describes the role of vitamin C in tissue repair?

Accepted Answer

It is necessary for fibroblasts to produce collagen during wound healing.

Question 17

Which of the following best explains why cartilage heals poorly compared to other connective tissues?

Accepted Answer

Cartilage is avascular and relies on diffusion for nutrient delivery, limiting its regenerative capacity.

Question 18

A patient with a nonextensive skin wound undergoes both regeneration and fibrosis. Which of the following best describes the outcome?

Accepted Answer

The wound is filled with dense irregular connective tissue (scar), and the overlying epithelium regenerates, but some function is lost.

Chapter 4: Tissue—The Living Fabric (Overview of Tissue Types)

Guida di studio - Domande di pratica

Study guide - Flashcard