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Questions and Answers
Which of the following is not found in the matrix of cartilage but is found in bone?
Which of the following is not found in the matrix of cartilage but is found in bone?
The reason that intervertebral discs exhibit a large amount of tensile strength, which allows them to absorb shock, is because they possess ________.
The reason that intervertebral discs exhibit a large amount of tensile strength, which allows them to absorb shock, is because they possess ________.
What tissue has lacunae, calcium salts, and blood vessels?
What tissue has lacunae, calcium salts, and blood vessels?
How is hyaline cartilage different from elastic or fibrocartilage?
How is hyaline cartilage different from elastic or fibrocartilage?
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Which of the following would be of most importance to goblet cells and other glandular epithelium?
Which of the following would be of most importance to goblet cells and other glandular epithelium?
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The simple columnar epithelium that form absorptive cells of the digestive tract have which characteristic?
The simple columnar epithelium that form absorptive cells of the digestive tract have which characteristic?
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Pseudostratified columnar epithelium ciliated variety ________.
Pseudostratified columnar epithelium ciliated variety ________.
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Which of the following is a single-celled layer of epithelium that forms the lining of serous membranes?
Which of the following is a single-celled layer of epithelium that forms the lining of serous membranes?
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Which statement best describes connective tissue?
Which statement best describes connective tissue?
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Connective tissue matrix is composed of ________.
Connective tissue matrix is composed of ________.
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Cell type not found in areolar connective tissue.
Cell type not found in areolar connective tissue.
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Which tissue type arises from all three embryonic germ layers?
Which tissue type arises from all three embryonic germ layers?
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The fiber type that gives connective tissue great tensile strength is ________.
The fiber type that gives connective tissue great tensile strength is ________.
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Groups of cells that are similar in structure and perform a common or related function form a(n) ________.
Groups of cells that are similar in structure and perform a common or related function form a(n) ________.
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The shape of the external ear is maintained by ________.
The shape of the external ear is maintained by ________.
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Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which tissue?
Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which tissue?
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Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as ________.
Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as ________.
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Which of the following is true about epithelia?
Which of the following is true about epithelia?
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Chondroblasts ________.
Chondroblasts ________.
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________ epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.
________ epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.
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A many-layered epithelium with cuboidal basal cells and flat cells at its surface would be classified as ________.
A many-layered epithelium with cuboidal basal cells and flat cells at its surface would be classified as ________.
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Edema occurs when
Edema occurs when
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Which of the following is true about the mode of secretion of exocrine glands?
Which of the following is true about the mode of secretion of exocrine glands?
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Heart muscle cells would tend to separate without ________.
Heart muscle cells would tend to separate without ________.
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Arteries, veins, and lymphatics keep clots from sticking as long as their ________ is intact and healthy.
Arteries, veins, and lymphatics keep clots from sticking as long as their ________ is intact and healthy.
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Which is true concerning muscle tissue?
Which is true concerning muscle tissue?
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The first step in tissue repair involves ________.
The first step in tissue repair involves ________.
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What are the three main components of connective tissue?
What are the three main components of connective tissue?
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Which of the following statements is true of connective tissue?
Which of the following statements is true of connective tissue?
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Select the correct statement regarding the stem cells of connective tissue.
Select the correct statement regarding the stem cells of connective tissue.
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Select the correct statement regarding tissue repair.
Select the correct statement regarding tissue repair.
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Select the correct statement regarding epithelia.
Select the correct statement regarding epithelia.
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Select the correct statement regarding adipose tissue.
Select the correct statement regarding adipose tissue.
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Which cells are commonly found wedged between simple columnar epithelial cells?
Which cells are commonly found wedged between simple columnar epithelial cells?
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Which of the following is not a step in tissue repair?
Which of the following is not a step in tissue repair?
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Mesenchymal cells are most commonly found in ________ connective tissue.
Mesenchymal cells are most commonly found in ________ connective tissue.
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Study Notes
Blood Vessels
- Blood vessels are a key distinguishing feature of bone tissue compared to cartilage, which does not contain them.
Collagen Fibers
- Intervertebral discs rely on collagen fibers for tensile strength and shock absorption, making them resilient under pressure.
Osseous Tissue
- Osseous tissue is characterized by the presence of lacunae, calcium salts, and blood vessels, unlike cartilage or other connective tissues.
Hyaline Cartilage
- Hyaline cartilage is identified by its lack of visible fibers, distinguishing it from elastic and fibrocartilage.
Hemocytoblast
- Hemocytoblasts are stem cells responsible for the formation of all blood cells but are not found in hyaline cartilage.
Goblet Cells
- Goblet cells, part of glandular epithelium, are supported by Golgi bodies, which are essential for their secretory function.
Simple Columnar Epithelium
- Simple columnar epithelium in the digestive tract is characterized by dense microvilli, enhancing nutrient absorption.
Pseudostratified Columnar Epithelium
- This type of epithelium, specifically the ciliated variety, lines most of the respiratory tract, aiding in mucus movement.
Simple Squamous Epithelium
- Simple squamous epithelium consists of a single layer of flat cells and forms the lining of serous membranes.
Connective Tissue
- Connective tissue commonly features a large amount of matrix, allowing for varied functions including support and binding.
Matrix Composition
- The matrix of connective tissue is comprised of fibers and ground substance, essential for structural integrity and function.
Chondrocytes
- Chondrocytes are not present in areolar connective tissue, which contains fibroblasts and macrophages instead.
Epithelial Tissue Origin
- Epithelial tissue develops from all three embryonic germ layers: ectoderm, mesoderm, and endoderm.
Collagen Fibers Strength
- Collagen fibers are critical for providing tensile strength in connective tissues, preventing them from easily being pulled apart.
Definition of Tissue
- A tissue is a group of similar cells working together to perform a specific function, distinct from organs and organ systems.
Elastic Cartilage
- Elastic cartilage maintains the shape of structures such as the external ear while providing flexibility.
Disorders in Simple Columnar Tissue
- Disorders affecting nutrient absorption and mucus secretion may be linked to dysfunction in simple columnar epithelium.
Endocrine Glands
- Endocrine glands, like the thyroid, secrete hormones directly into the bloodstream, unlike exocrine glands that use ducts.
Endothelium Function
- The endothelium serves a crucial role by lining hollow cardiovascular organs, maintaining a smooth surface to prevent clotting.
Chondroblast Function
- Chondroblasts are responsible for dividing and secreting new matrix within cartilage, contributing to its growth.
Pseudostratified Columnar Cell Structure
- Pseudostratified columnar epithelium appears layered but is a single layer of cells all in contact with the basement membrane.
Stratified Squamous Epithelium
- Stratified squamous epithelium features multiple layers of cells, with cuboidal basal cells transitioning to flat surface cells.
Edema and Areolar Tissue
- Edema occurs when areolar tissue absorbs excess fluid in inflamed areas, leading to swelling.
Exocrine Glands Secretion
- Merocrine glands release their secretions without cellular alteration, while apocrine and holocrine glands involve cell damage.
Intercalated Discs
- Intercalated discs are essential for heart muscle cells to remain connected, preventing separation during contraction.
Healthy Endothelium
- The health of the endothelium in arteries and veins is vital to prevent clot formation and maintain proper blood flow.
Muscle Tissue Characteristics
- Muscle tissue is highly cellular and well-vascularized, supporting its critical functions of contraction and movement.
Tissue Repair Process
- Inflammation is the initial step in tissue repair, followed by blood supply restoration and regeneration or fibrosis.
Connective Tissue Components
- Connective tissue is mainly composed of ground substance, fibers, and cells, reflecting its diverse properties and functions.
Strength of Connective Tissue
- Collagen fibers provide connective tissue with significant tensile strength, vital for structural support.
Stem Cells in Connective Tissue
- "Blast" cells in connective tissue are undifferentiated and actively divide to contribute to tissue repair and growth.
Inflammation Effects
- Inflammation results in capillary dilation and increased permeability, facilitating healing processes in injured tissues.
Epithelia Types and Functions
- Stratified epithelia provide protection against abrasion in areas such as skin, while simple epithelia often permit absorption and secretion.
Adipose Tissue Function
- Adipose tissue primarily functions for nutrient storage and energy regulation, with a structure that minimizes extracellular matrix.
Goblet Cells in Epithelia
- Goblet cells are interspersed within simple columnar epithelial cells, providing mucus for lubrication and protection.
Tissue Repair Steps
- Formation of new stem cells is not part of the direct tissue repair process, which focuses on restoring damaged tissues.
Mesenchymal Cells
- Mesenchymal cells are predominantly found in embryonic connective tissue, playing a crucial role in development and differentiation.
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