Questions and Answers
The shape of the external ear is maintained by:
Organized groups of cells (plus their intercellular substance) that have a common purpose form a(n):
Functions of the epithelia include all of the following, except:
Which of the following membranes line cavities that are open to the environment?
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The basic shapes of epithelial cells include all of the following, except:
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Which of these is not considered connective tissue?
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Tissue that is specialized for the conduction of electrical impulses is ___________ tissue.
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The three main components of connective tissue are:
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Each of the following is the primary tissue type, except:
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Tissue that is specialized for contraction is __________ tissue.
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Matrix is:
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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.
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The fiber type that gives connective tissue great tensile strength is:
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Dead skin cells are shed in thick sheets because they are held together by a thin layer of proteoglycan reinforced by intermediate filaments. Such strong intercellular connections are:
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Which statement best describes connective tissue?
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A transitional epithelium would be found:
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The muscle tissue that shows no striations is __________ muscle.
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Select the correct statement regarding adipose tissue.
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Epithelial tissue:
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The first step in tissue repair involves:
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The red color and heat associated with inflamed tissue is the result of:
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Select the correct statement regarding epithelia.
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Simple cuboidal epithelia are usually associated with secretion and absorption.
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Squamous cells are flattened and scalelike when mature.
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Depending on the functional state of the bladder, transitional epithelium may resemble stratified squamous or stratified cuboidal epithelium.
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Smooth muscle cells possess central nuclei but lack striations.
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Epithelial tissue always exhibits polarity; that is, they have a free surface and a basal surface.
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Most connective tissue have regenerative capacity, while most epithelial tissue do not.
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Study Notes
Tissue Types and Structures
- The external ear shape is supported by elastic cartilage.
- Organized cellular groups with a common function are called tissues.
- Epithelial tissue functions include controlling permeability, protection, and absorption, but not energy storage.
- Mucous membranes line cavities that open to the environment.
- Basic epithelial cell shapes include columnar, cuboidal, and squamous; stratified is not a shape but a layering.
- Muscle tissue is not classified as connective tissue.
Connective Tissue Characteristics
- Nervous tissue conducts electrical impulses.
- Connective tissue comprises ground substance, fibers, and cells; matrix refers to fibers and ground substance.
- Collagen fibers provide tensile strength to connective tissue.
Types of Epithelia
- Pseudostratified columnar epithelium has cells touching the basement membrane, creating an appearance of multiple layers.
- Transitional epithelium lines the urinary bladder, allowing for stretching.
- Simple cuboidal epithelium is associated with secretion and absorption.
Muscle Tissue
- Smooth muscle tissue lacks striations and is involuntary.
- Striations are present in skeletal and cardiac muscle tissues.
Tissue Repair and Inflammation
- The initial step in tissue repair involves the formation of granulation tissue.
- Redness and heat in inflamed tissue result from local vasodilation (blood vessel dilation).
Epithelial Characteristics
- Stratified epithelia protect against abrasion, while simple epithelia often do not provide impermeable barriers.
- Epithelial tissue has a basement membrane and exhibits polarity, featuring a free surface and a basal surface.
Miscellaneous Facts
- Smooth muscle cells contain central nuclei but lack striations.
- Most connective tissues possess regenerative capacity, while most epithelial tissues do not.
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Test your knowledge with these flashcards for Chapter 4 in Biology. Each card presents a question about the structure and function of various biological tissues. Perfect for reinforcing key concepts and preparing for exams.