Textbook Question
Name the specific connective tissue type found in the following body locations:
a. Forming the soft packing around organs
b. Supporting the ear pinna
c. Forming 'stretchy' ligaments
d. First connective tissue in the embryo
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Ch. 4 Tissue: The Living Fabric
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091
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Table of contents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System10
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton11
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity28
- Ch. 14 The Autonomic Nervous System18
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart22
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses29
- Ch. 22 The Respiratory System20
- Ch. 23 The Digestive System30
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System25
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System23
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091Not the one you use?Change textbook
Chapter 4, Problem 7
Name the two major components of the extracellular matrix and, if applicable, subclasses of each component.
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Identify the two major components of the extracellular matrix (ECM), which are the fibrous proteins and the ground substance.
Explain that the fibrous proteins primarily include collagen fibers, elastic fibers, and reticular fibers, each providing different structural properties to the ECM.
Describe the ground substance as a gel-like material composed mainly of water, proteoglycans, and glycosaminoglycans (GAGs), which fill the space between cells and fibers.
Clarify that proteoglycans are a subclass of the ground substance and consist of a core protein with attached GAG chains, contributing to the ECM's viscosity and resilience.
Summarize that the ECM's two major components are fibrous proteins (collagen, elastic, reticular fibers) and ground substance (proteoglycans and glycosaminoglycans), which together provide structural support and biochemical signaling.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Extracellular Matrix (ECM)
The extracellular matrix is a complex network of macromolecules surrounding cells, providing structural and biochemical support. It plays a crucial role in tissue integrity, cell signaling, and regulating cellular behavior.
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3:31
Bone Matrix
Major Components of the ECM: Proteins
Proteins in the ECM include fibrous types like collagen, which provides tensile strength, and elastin, which offers elasticity. Other proteins such as fibronectin and laminin help in cell adhesion and signaling.
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Major Components of the ECM: Polysaccharides (Glycosaminoglycans and Proteoglycans)
Polysaccharides in the ECM mainly consist of glycosaminoglycans (GAGs) and proteoglycans. GAGs are long, unbranched chains that attract water, providing hydration and resistance to compression, while proteoglycans are GAGs linked to proteins, contributing to matrix structure and cell communication.
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Related Practice
Textbook Question
Scar tissue is a variety of
a. Epithelium
b. Connective tissue
c. Muscle tissue
d. Nervous tissue
e. All of these
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Textbook Question
Name the specific connective tissue type found in the following body locations:
e. Forming the intervertebral discs
f. Covering the ends of bones at joint surfaces
g. Main component of subcutaneous tissue
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Textbook Question
An epithelium that has several layers, with an apical layer of flattened cells, is called (choose all that apply):
a. Ciliated
b. Columnar
c. Stratified
d. Simple
e. Squamous
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Textbook Question
What is the function of macrophages?
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Textbook Question
Name the primary cell type in connective tissue proper; in cartilage; in bone.
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