Question 1

Which type of cell junction is primarily responsible for preventing the free passage of molecules, including ions, between adjacent epithelial cells?

Accepted Answer

Tight junctions

Question 2

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

Accepted Answer

Epithelial tissue is avascular and consists of closely packed cells, while connective tissue is vascular (with exceptions) and has scattered cells in an extracellular matrix.

Question 3

A tissue sample from the urinary bladder shows multiple layers of rounded cells that flatten when stretched. What type of epithelial tissue is this?

Accepted Answer

Transitional

Question 4

Which of the following glands releases its secretion by the entire cell rupturing and becoming part of the secretion, as shown in the provided image?

Accepted Answer

Holocrine gland

Question 5

Which connective tissue fiber type is primarily responsible for providing high tensile strength to tissues such as tendons and ligaments?

Accepted Answer

Collagen fibers

Question 6

A patient presents with a bluish tint to their lips and nail beds. Which pigment and physiological condition is most likely responsible for this appearance?

Accepted Answer

Hemoglobin; cyanosis due to low oxygen

Question 7

Which of the following best describes the function of the lacunae in bone tissue, as shown in the provided osteon diagram?

Accepted Answer

They provide a protective environment for osteocytes.

Question 8

Which type of muscle tissue is striated, involuntary, and contains intercalated discs with both desmosomes and gap junctions?

Accepted Answer

Cardiac muscle

Question 9

During tissue repair, which step involves the formation of new connective tissue and microscopic growth of many capillaries into the injured area, resulting in a darker pink coloration?

Accepted Answer

Granulation tissue formation

Question 10

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

Accepted Answer

Cartilage lacks a direct blood supply and relies on diffusion for nourishment.

Question 11

Which of the following is a function of the skin related to homeostasis?

Accepted Answer

Thermoregulation through sweat evaporation and blood vessel dilation/constriction

Question 12

Which of the following statements about the basement membrane is correct?

Accepted Answer

It is composed of the basal lamina and reticular lamina.

Question 13

Which of the following best describes the secretion mode of eccrine (sweat) glands?

Accepted Answer

Merocrine secretion

Question 14

A tissue sample shows parallel bundles of collagen fibers with little ground substance and fibroblasts. Which tissue is this most likely to be?

Accepted Answer

Dense regular connective tissue

Question 15

Which of the following is NOT a function of the hypodermis?

Accepted Answer

Production of keratin

Question 16

Which of the following best describes the function of the arrector pili muscle?

Accepted Answer

Contracts to pull hair upright, causing 'goosebumps'

Question 17

Which of the following best describes the parenchyma of an organ?

Accepted Answer

The tissue that conducts the specific function of the organ

Question 18

Which of the following is a characteristic of neurons but NOT neuroglial cells?

Accepted Answer

Conduct action potentials

Question 19

Which of the following best explains why the stratum corneum is important for skin function?

Accepted Answer

It is composed of dead keratinocytes that provide protection and waterproofing.

Question 20

Which of the following best describes the main function of reticular fibers in connective tissue?

Accepted Answer

Support and form a soft internal skeleton (stroma) for organs

Tissues and the Integumentary System: Structure, Function, and Repair

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