Chapter 4 Epithelia and Glands Quiz

Questions and Answers

Select the correct statement regarding epithelia.

Cuboidal epithelia are never found in glands.

Stratified epithelia are present where protection from abrasion is important. (correct)

Simple squamous epithelium is the only type of epithelial tissue.

All epithelia are vascularized.

Which of the following is true about the mode of secretion of exocrine glands?

Apocrine glands are always the most common type of gland.

Merocrine glands are not altered by the secretory process. (correct)

Holocrine glands secrete their contents without losing cellular material.

Merocrine glands are altered by the secretory process.

Which of the following is true about epithelia?

Endothelium provides a slick surface lining all hollow cardiovascular organs. (correct)

Simple columnar epithelium is always ciliated.

Epithelia are non-vascular tissues.

Cuboidal epithelium is primarily involved in absorption only.

Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which epithelial tissue?

simple columnar Signup and view all the answers

Which epithelia forms the walls of the air sacs across which gas exchange occurs in the lungs?

simple squamous Signup and view all the answers

A ciliated version of pseudostratified columnar epithelium containing mucus-secreting goblet cells ________.

lines most of the respiratory tract Signup and view all the answers

Select the correct statement regarding adipose tissue.

Its primary function is nutrient storage. Signup and view all the answers

Which of the following statements is true of connective tissue?

Collagen fibers provide high tensile strength. Signup and view all the answers

The shape of the external ear is maintained by ________.

elastic cartilage Signup and view all the answers

The fiber type that gives connective tissue great tensile strength is ________.

collagen Signup and view all the answers

Connective tissue extracellular matrix is composed of ________.

fibers and ground substance Signup and view all the answers

Which of the following is NOT found in cartilage but is found in bone?

Blood vessels Signup and view all the answers

Which is true concerning muscle tissue?

It is highly cellular and well vascularized. Signup and view all the answers

Select the correct statement regarding tissue repair.

Inflammation causes capillaries to dilate and become permeable. Signup and view all the answers

The first step in tissue repair involves ________.

inflammation Signup and view all the answers

Smooth muscle

moderate regenerative ability Signup and view all the answers

Skeletal muscle

weak regenerative ability Signup and view all the answers

Cardiac muscle

virtually no functional regenerative ability Signup and view all the answers

Areolar connective tissue

regenerates extremely well Signup and view all the answers

Tendons and ligaments

moderate regenerative ability Signup and view all the answers

The salivary glands are a good example of a ________ exocrine gland.

compound tubuloalveolar Signup and view all the answers

Mesenchymal cells are most commonly found in ________ connective tissue.

embryonic Signup and view all the answers

Chondroblasts ________.

within the cartilage divide and secrete new matrix Signup and view all the answers

Which tissue type is formed by many cells joining together, which are multinucleated?

skeletal muscle Signup and view all the answers

Study Notes

Epithelia

Stratified epithelia provide protection from abrasion, indicating their role in areas subject to wear and tear.
Endothelium serves as a smooth lining for hollow cardiovascular organs, facilitating blood flow.
Simple columnar epithelium is essential for nutrient absorption and mucus secretion; disorders here may lead to nutrient malabsorption.
Simple squamous epithelium forms the walls of alveoli in lungs, allowing for efficient gas exchange.
Ciliated pseudostratified columnar epithelium, featuring goblet cells, lines the respiratory tract, aiding in mucus clearance.

Connective Tissue

Adipose tissue primarily stores nutrients, highlighting its energy reserve function.
Collagen fibers impart high tensile strength to connective tissue, crucial for structural integrity.
Elastic cartilage maintains the shape of structures like the external ear, providing flexibility.
Collagen fibers are the primary components responsible for tensile strength in connective tissues.
Connective tissue's extracellular matrix consists of fibers and ground substance, influencing its properties.
Bone contains blood vessels, while cartilage does not, distinguishing these two tissue types.

Muscle Tissue

Muscle tissue is characterized by being highly cellular and well-vascularized, supporting its functions of contraction and movement.
Smooth muscle exhibits moderate regenerative ability, allowing it to heal from injury.
Skeletal muscle has a weak regenerative ability due to its structure and function.
Cardiac muscle has virtually no capability for functional regeneration after injury.

Tissue Repair

Inflammation is the initial response in tissue repair, causing capillaries to dilate and increase permeability.
The first step in tissue repair is inflammation, setting the stage for healing processes.

Regeneration

Areolar connective tissue regenerates extremely well, making it resilient after injury.
Tendons and ligaments possess moderate regenerative abilities, reflecting their structured composition.

Glandular Tissue

Salivary glands exemplify compound tubuloalveolar exocrine glands, demonstrating the complexity of gland structure.
Mesenchymal cells are primarily found in embryonic connective tissue, implicated in development and repair.
Chondroblasts reside within cartilage, where they divide and secrete new matrix, contributing to growth and healing.

Skeletal Muscle

Formed by many cells fused together, skeletal muscle fibers are multinucleated, enabling strong contractions and force generation.

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Description

Test your knowledge on the structure and function of epithelia and exocrine glands with this Chapter 4 quiz. Explore important concepts such as stratified epithelia and various modes of secretion in glands. Perfect for reinforcing your understanding of epithelial tissues.