Question 1

Which of the following best describes the main components of all tissues?

Accepted Answer

A discrete population of cells and a surrounding extracellular matrix (ECM).

Question 2

Which type of cell junction is most important in preventing the leakage of substances between cells in the lining of blood vessels?

Accepted Answer

Tight junctions

Question 3

A patient with Marfan syndrome is at increased risk for which of the following complications due to abnormal elastic fibers in the ECM?

Accepted Answer

Aortic dissection

Question 4

Which of the following best explains why cartilage heals poorly after injury?

Accepted Answer

Cartilage is avascular and its resident cells have limited capacity for regeneration.

Question 5

Which of the following is a function of proteoglycans in the ECM?

Accepted Answer

They make the ECM firmer and more resistant to compression.

Question 6

A tissue sample shows a single layer of tall, rectangular cells with nuclei near the base and microvilli on the apical surface. Where is this tissue most likely found?

Accepted Answer

Small intestine

Question 7

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones directly into the bloodstream; exocrine glands release products onto epithelial surfaces or into ducts.

Question 8

Which of the following connective tissue types is specialized for fat storage, insulation, and shock absorption?

Accepted Answer

Adipose tissue

Question 9

A biopsy reveals tissue with parallel bundles of collagen fibers and fibroblasts. This tissue is most likely:

Accepted Answer

Dense regular connective tissue

Question 10

Which of the following best describes the main function of gap junctions in cardiac muscle tissue?

Accepted Answer

Allowing ions and small molecules to pass directly between cells for coordinated contraction

Question 11

Which of the following is a key difference between skeletal and cardiac muscle tissue?

Accepted Answer

Skeletal muscle is under voluntary control, while cardiac muscle is involuntary.

Question 12

Which of the following best explains why the epidermis is avascular?

Accepted Answer

Epithelial tissues are avascular and rely on diffusion from underlying connective tissue for nutrients.

Question 13

Which of the following is a property of serous membranes?

Accepted Answer

They secrete a thin, watery fluid that reduces friction between organs.

Question 14

A patient presents with a wound that is healing by fibrosis. Which of the following is most likely to be true about the tissue involved?

Accepted Answer

The tissue has limited capacity for regeneration, so fibroblasts are producing collagen to fill the gap.

Question 15

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

Accepted Answer

It is required by fibroblasts to produce functional collagen.

Question 16

Which of the following tissues is most likely to regenerate after injury?

Accepted Answer

Epithelial tissue of the digestive tract

Question 17

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

Accepted Answer

They form a supportive meshwork that traps foreign cells and supports small structures.

Question 18

Which of the following is a characteristic of nonkeratinized stratified squamous epithelium?

Accepted Answer

Apical cells retain their nuclei and remain alive.

Question 19

Which of the following best explains why dense regular connective tissue is found in tendons and ligaments?

Accepted Answer

Its parallel collagen bundles provide great tensile strength in one direction.

Question 20

Which of the following is a function of neuroglial cells in nervous tissue?

Accepted Answer

They support and anchor neurons, monitor extracellular fluid, and can divide by mitosis.

Chapter 4: Histology – Study Guide for Human Anatomy & Physiology

Study Guide - Practice Questions

Study Guide - Flashcards