Q: Which equation best represents the relationship between the components of the connective tissue matrix?

$$\text{Matrix} = \text{Ground\ substance} + \text{Fibers}$$

Question 1

Which of the following best describes the main structural difference between dense regular and dense irregular connective tissue?

Accepted Answer

Dense regular connective tissue has collagen fibers aligned in parallel, while dense irregular connective tissue has collagen fibers arranged in multiple directions.

Question 2

A patient suffers a torn tendon. Which type of connective tissue is primarily affected, and what is its main function?

Accepted Answer

Dense regular connective tissue; it resists tension in one direction due to parallel collagen fibers.

Question 3

Which of the following connective tissue types is most likely to be found in the walls of large arteries, and what property does it provide?

Accepted Answer

Elastic connective tissue; it allows the vessel walls to stretch and recoil.

Question 4

Which of the following best explains why cartilage heals more slowly than bone after injury?

Accepted Answer

Cartilage is avascular and relies on diffusion from the perichondrium for nutrients, while bone is highly vascularized.

Question 5

A histological slide shows a tissue with large, empty-looking cells and a thin rim of cytoplasm. Which tissue is this, and what is its primary function?

Accepted Answer

Adipose tissue; energy storage and insulation.

Question 6

Which connective tissue fiber type is most responsible for the high tensile strength of tendons?

Accepted Answer

Collagen fibers

Question 7

A biopsy from a lymph node reveals a network of short, fine, highly branched fibers supporting numerous immune cells. Which fiber type is most abundant in this tissue?

Accepted Answer

Reticular fibers

Question 8

Which of the following cell types is responsible for producing the extracellular matrix in cartilage?

Accepted Answer

Chondroblasts

Question 9

A patient with a genetic defect in elastin production would most likely have problems in which of the following tissues?

Accepted Answer

Elastic connective tissue

Question 10

Which of the following best describes the composition of the extracellular matrix in connective tissue?

Accepted Answer

Ground substance and fibers

Question 11

A slide of bone tissue shows concentric rings around a central canal. What is the name of these structural units, and what is their function?

Accepted Answer

Osteons; they provide structural support and house blood vessels.

Question 12

Which connective tissue type is most involved in the formation of scar tissue after injury?

Accepted Answer

Dense irregular connective tissue

Question 13

A patient with a deficiency in vitamin C develops weak blood vessels and poor wound healing. Which connective tissue component is most affected?

Accepted Answer

Collagen fibers

Question 14

Which of the following best explains why blood is considered a connective tissue?

Accepted Answer

It consists of cells surrounded by a nonliving extracellular matrix (plasma).

Question 15

A tissue sample shows chondrocytes in lacunae within a glassy, smooth matrix. Which type of cartilage is this, and where is it commonly found?

Accepted Answer

Hyaline cartilage; found in the trachea and at the ends of long bones.

Question 16

Which equation best represents the relationship between the components of the connective tissue matrix?

Accepted Answer

$$	ext{Matrix} = 	ext{Ground\ substance} + 	ext{Fibers}$$

Question 17

A patient presents with a ruptured intervertebral disc. Which type of connective tissue is most likely damaged?

Accepted Answer

Fibrocartilage

Question 18

Which of the following best describes the function of reticular connective tissue in lymphoid organs?

Accepted Answer

It forms a soft internal skeleton that supports other cell types.

Question 19

Which cell type is responsible for phagocytosis and defense in connective tissues?

Accepted Answer

Macrophages

Question 20

A tissue sample from the spleen shows a network of black-stained fibers supporting numerous small, round cells. Which fiber type is most likely stained, and what is its function?

Accepted Answer

Reticular fibers; they form a supportive framework for immune cells.

Connective Tissue: Structure, Types, and Functions

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