Question 1

Which of the following best describes the function of the extracellular matrix (ECM) in tissues?

Accepted Answer

It directs cells to proper positions, provides strength, and regulates cell development.

Question 2

A patient presents with hyperextensible skin, frequent joint dislocations, and fragile blood vessels. Which protein fiber abnormality is most likely responsible for these symptoms?

Accepted Answer

Abnormal collagen fibers

Question 3

Which equation best represents the relationship between the number of cell layers ($$n) $$and the permeability ($$P) of an $$epithelial tissue, assuming more layers decrease permeability?

Accepted Answer

$$P = \frac{k}{n}$$

Question 4

Which type of epithelial tissue is best adapted for rapid diffusion of substances and where is it commonly found?

Accepted Answer

Simple squamous epithelium; air sacs of lungs and blood vessel walls

Question 5

Which of the following is a function of microvilli on epithelial cells?

Accepted Answer

Increasing surface area for absorption

Question 6

A gland releases its product by rupturing entire cells, which are then replaced by mitosis. What is this mode of secretion called?

Accepted Answer

Holocrine secretion

Question 7

Which connective tissue type is most abundant in the dermis and provides resistance to tension in multiple directions?

Accepted Answer

Dense irregular connective tissue

Question 8

Which equation best describes the relationship between the concentration of glycosaminoglycans (GAGs) in the ECM ($$C_{GAG}) $$and the tissue's ability to resist compressive forces ($$R$$)?

Accepted Answer

$$R = k \cdot C_{GAG}$$

Question 9

Which of the following best explains why the pharynx, esophagus, anus, and vagina have nonkeratinized stratified squamous epithelium?

Accepted Answer

These areas are subject to wear and tear and need protection.

Question 10

Which cell type in connective tissue is primarily responsible for producing protein fibers such as collagen and elastin?

Accepted Answer

Fibroblasts

Question 11

A patient with Marfan syndrome is at risk for aortic aneurysm due to abnormal elastic fibers. Which tissue property is most affected?

Accepted Answer

Elasticity

Question 12

Which of the following equations best represents the relationship between the number of adipocytes ($$N) $$and the risk of obesity-related health problems ($$H) in $$hypercellular obesity?

Accepted Answer

$$H = k \cdot N$$

Question 13

Which specialized connective tissue is avascular and relies on diffusion from the perichondrium for nutrient supply?

Accepted Answer

Cartilage

Question 14

Which of the following is a major function of reticular tissue?

Accepted Answer

Forming fine networks that support vessels and organs

Question 15

Which equation best describes the relationship between the amount of collagen fibers ($$C) $$and the tensile strength ($$T) of a $$tissue?

Accepted Answer

$$T = k \cdot C$$

Question 16

Which muscle tissue type is striated, voluntary, and attached to bone?

Accepted Answer

Skeletal muscle

Question 17

Which cell type in nervous tissue is responsible for generating and transmitting electrical signals?

Accepted Answer

Neurons

Question 18

Which equation best represents the relationship between the rate of tissue regeneration ($$R) $$and the mitotic activity of cells ($$M$$)?

Accepted Answer

$$R = k \cdot M$$

Question 19

Which membrane type lines body cavities such as the pericardial, peritoneal, and pleural cavities?

Accepted Answer

Serous membrane

Question 20

Which of the following best describes the process of fibrosis during tissue repair?

Accepted Answer

Fibroblasts produce collagen to fill in the defect, resulting in scar tissue.

Histology: Structure and Function of Tissues

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