40 Questions
What is the primary function of glycosaminoglycans in the ground substance?
To bind water and resist compressive forces
What is the result of decreased skin turgor?
Late sign of dehydration
What is the primary component of proteoglycans?
Core protein
What is the function of lymphatics in connective tissue?
To prevent edema
What is the term for the abnormal accumulation of tissue fluid?
Edema
What is the primary function of collagen fibers in Connective Tissue?
To provide mechanical strength and support
What is the main component of ground substance in Connective Tissue?
Water
What is the characteristic feature of Elastic fibers in Connective Tissue?
High elasticity
What is the primary function of fibroblasts in connective tissue?
To synthesize fibers of connective tissue
What type of collagen fibers are synthesized by reticular cells?
Fine type of collagen fibers
What is the term for tumors that arise from Connective Tissue?
Sarcomas
What is the embryonic origin of Connective Tissue?
Mesoderm
What is the function of elastic fibers in connective tissue?
To allow for tissue elasticity
What is the composition of ground substance in connective tissue?
Water and macromolecules
Which type of adipocyte contains multiple droplets of lipids?
Multilocular adipocyte
What is the main function of mast cells in connective tissue?
To trigger symptoms of allergy through histamine release
What is the primary component of collagen fibers?
Fibrils
Which cells are responsible for synthesizing collagen?
Fibroblasts
What is the approximate percentage of collagen in the human body's dry weight?
30%
What is the characteristic of collagen fibers that makes them very strong?
Very high tensile strength, but limited stretchability
What is the characteristic of Loose Connective Tissue?
More cells, few fibers, clear space
Which of the following is a type of Proper Connective Tissue?
Reticular Connective Tissue
What is the difference between Loose and Dense Irregular Connective Tissue?
Number of cells and fibers
Where can Loose Connective Tissue be found?
Ubiquitously throughout the body
What is the characteristic of Dense Irregular Connective Tissue?
Fewer cells, many thick collagen fibers
What is the primary function of type 1 collagen in the body?
To resist tensile forces
What is the role of vitamin C in collagen synthesis?
It acts as a cofactor
What is the characteristic of elastic fibers in connective tissue?
They are branching and anastomosing
What is the consequence of a deficiency in collagen type 3?
Fragile skin syndromes
What type of collagen is responsible for forming a reticulum in connective tissue?
Type 3 collagen
What is the primary function of the dense regular connective tissue found in tendons and ligaments?
To resist tensile forces
What is the characteristic feature of the fibrocyte nuclei found in dense regular connective tissue?
They are very thin and elongated
What is the composition of the network of fibers found in reticular connective tissue?
Fine collagen fibrils
What is the function of reticular cells in the synthesis of connective tissue?
To synthesize reticular fibers
What is the primary function of adipocytes in connective tissue?
To store energy and regulate body fat
What is the role of leptin in the regulation of body fat?
It decreases appetite
What is the structure that forms the stroma in lymph nodes?
Reticular connective tissue
What is the term for the process by which adipocytes produce leptin?
Endocrine function
What is the relationship between leptin levels and body fat?
Leptin levels are directly proportional to body fat
What is the function of the stroma in lymph nodes?
To divide functional tissue
This lecture covers the definition, origin, functions, and relevance of connective tissue, as well as its components, classification, and types.
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