Connective Tissue Cells Lecture
The common cell types in connective tissues include fibroblasts, mast cells, plasma cells, macrophages, adipocytes, and leukocytes. Fibroblasts are the most common cell type of connective tissue. They produce both fibers and amorphous ground substance. The lecture below gives you an insight into connective tissues and follows it up with quizzes. Give it a try!
Questions and Answers
- 1.
Permanent cells are cells that no longer change. There are multiple types of permanent cells within the body, and as such, many are present within connective tissue. Connective tissue is tissue that connects, supports, binds, or separates other tissues or organs. Which of the following cell types is not a permanent cell present within connective tissue?
- A.
Leukocytes
- B.
Fibroblasts
- C.
Adipocytes
- D.
Mast Cells
Correct Answer
A. LeukocytesExplanation
Leukocytes, also known as white blood cells, are not permanent cells present within connective tissue. Unlike fibroblasts, adipocytes, and mast cells, leukocytes are part of the immune system and are constantly circulating in the bloodstream. They are responsible for defending the body against infections and foreign substances. While they can migrate to connective tissue during an immune response, they are not considered permanent residents of connective tissue.Rate this question:
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- 2.
Connective tissue, present throughout the body, contains many types of cells; both permanent and transient. Permanent cells no longer change whereas transient cells are short lived. Some types of cells are more prevalent in the connective tissues than others. What is the most common type of connective tissue cell?
- A.
Collagen
- B.
Macrophages
- C.
Fibroblasts
- D.
Mast Cells
Correct Answer
C. FibroblastsExplanation
Fibroblasts are the most common type of connective tissue cell. Connective tissue is made up of various types of cells, and fibroblasts are the predominant cell type. They are responsible for producing and maintaining the extracellular matrix, which gives connective tissue its structure and support. Fibroblasts also play a role in wound healing and tissue repair.Rate this question:
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- 3.
A 54 year old man was walking down the street on Christmas Eve in 1925. He had just waited in line for 7 hours to spend $0.69 on the perfect gift for his 3 year old daughter; the Famlee doll produced by the Berwick Doll Company. His 87 year old neighbor eyed his recent purchase and, thinking it would be the perfect doll for her great granddaughter, mugged him. The 54 year old man received 3 lacerations; one on his abdomen and two along his brachial region. After a few days, the wounds began healing. Which of the following connective tissue cells, containing actin filaments providing contractability to the edges of the wounds, aid in wound healing?
- A.
Macrophages
- B.
Adipocytes
- C.
GAG
- D.
Myofibroblasts
Correct Answer
D. MyofibroblastsExplanation
Myofibroblasts aid in wound healing by containing actin filaments that provide contractability to the edges of the wounds. This contraction helps to close the wound and promote healing. Macrophages are immune cells that help to remove debris and fight infection in the wound. Adipocytes are fat cells that do not play a direct role in wound healing. GAGs (glycosaminoglycans) are a type of molecule found in connective tissue, but they do not have a direct role in wound healing.Rate this question:
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- 4.
One day, Alex is eating at the Heart and Soul bistro when he decides to have a cookie for dessert. He wasn't entirely sure what type of cookie it was but he ate it anyway. As soon as he ate it, he realized it was a mistake; it was a PEANUT BUTTER cookie (egads!). His body responded with an allergic, inflammatory response mediated by certain cells that contain basophilic granules. What type of cell was responsible for his allergic response?
- A.
Mast Cells
- B.
Adipocytes
- C.
Pericytes
- D.
Fibroblasts
Correct Answer
A. Mast CellsExplanation
Mast cells are responsible for allergic responses. When Alex ate the peanut butter cookie, his body recognized the allergen and activated mast cells, which contain basophilic granules. These granules release histamine and other inflammatory mediators, causing an allergic reaction. Adipocytes, pericytes, and fibroblasts do not play a role in allergic responses.Rate this question:
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- 5.
Which type of adult stem cell are found outside of the capillary walls?
- A.
Pericytes
- B.
Mast Cells
- C.
Fibroblasts
- D.
Myofibroblasts
Correct Answer
A. PericytesExplanation
Pericytes are a type of adult stem cell that are found outside of the capillary walls. They are located in close proximity to blood vessels and play a crucial role in maintaining the integrity and function of the blood-brain barrier. These cells have the ability to differentiate into various cell types including smooth muscle cells, endothelial cells, and even neurons. Additionally, pericytes are involved in regulating blood flow, angiogenesis, and tissue repair.Rate this question:
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- 6.
These transient cells are white blood cells which are "born" in blood marrow. Which of the following is the cell type described previously?
- A.
Fibroblasts
- B.
Mast Cells
- C.
Leukocytes
- D.
Myofibroblasts
Correct Answer
C. LeukocytesExplanation
Leukocytes are the correct answer because they are white blood cells that are produced in the bone marrow. They play a crucial role in the immune system by defending the body against infections and foreign substances. Fibroblasts are not white blood cells, but rather connective tissue cells. Mast cells are a type of white blood cell, but they are not specifically "born" in the bone marrow. Myofibroblasts are specialized cells involved in wound healing and tissue repair, but they are not white blood cells.Rate this question:
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- 7.
What type of connective tissue is this?
- A.
Type IV collagen
- B.
Loose
- C.
Reticular
- D.
Areolar
Correct Answer
C. ReticularExplanation
Type IV collagen is a major component of reticular fibers, which are a type of connective tissue. Reticular tissue provides structural support and forms the framework for organs such as the liver, spleen, and lymph nodes. It is composed of reticular fibers, which are made up of type III collagen and type IV collagen. This type of connective tissue is different from loose connective tissue, areolar connective tissue, and dense connective tissue.Rate this question:
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- 8.
What is this?
- A.
Adipose
- B.
Leukocytes
- C.
Fibroblasts
- D.
Mast Cells
Correct Answer
A. AdiposeExplanation
Adipose refers to the connective tissue that stores fat cells in the body. It is responsible for insulation, cushioning, and energy storage. Leukocytes are white blood cells that play a crucial role in the immune system. Fibroblasts are cells that produce collagen and other connective tissue fibers. Mast cells are involved in allergic reactions and inflammation. Out of these options, adipose is the correct answer as it is the only one related to fat tissue.Rate this question:
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- 9.
This is dense irregular connective tissue.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is "This is dense irregular connective tissue." However, the correct answer is False. This means that the statement is incorrect, and the tissue in question is not dense irregular connective tissue. The explanation for this answer could be that the tissue may belong to a different type of connective tissue, such as dense regular connective tissue or loose connective tissue. Without further information, it is not possible to determine the exact type of connective tissue it is.Rate this question:
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- 10.
This is loose connective tissue.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Loose connective tissue is a type of connective tissue that is characterized by loosely arranged fibers and cells embedded in a gel-like matrix. It provides support and flexibility to various organs and structures in the body. This tissue type is found in many areas of the body, including beneath the skin, around blood vessels, and between muscles. Therefore, the statement "This is loose connective tissue" is true.Rate this question:
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- 11.
This is elastic tissue.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "This is elastic tissue" is incorrect. Elastic tissue is a type of connective tissue that is found in organs like the lungs and arteries, providing them with elasticity. Without any context or information about what "this" refers to, it is impossible to determine if it is elastic tissue or not. Therefore, the correct answer is false.Rate this question:
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- 12.
This is mucoid connective tissue, or Wharton's Jelly.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Mucoid connective tissue, also known as Wharton's Jelly, is a gelatinous substance found in the umbilical cord. It provides support and protection to the blood vessels within the cord. This tissue is rich in mucopolysaccharides, which give it its gel-like consistency. Therefore, the statement "This is mucoid connective tissue, or Wharton's Jelly" is true.Rate this question:
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- 13.
Which of the following is not a type of specialized connective tissue?
- A.
Muscle
- B.
Adipose
- C.
Cartilage
- D.
Blood
Correct Answer
A. MuscleExplanation
Muscle tissue is not a specialized connective tissue. It differs from connective tissues in terms of its primary function, structure, and properties. While connective tissues provide support, structure, and various other functions, muscle tissues specialize in generating force and enabling bodily movements.Rate this question:
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- 14.
Containing lots of ground substance, and giving rise to other types of connective tissue are both characteristics of the earliest form of connective tissue. What is this form of connective tissue?
- A.
Mucoid
- B.
Elastic
- C.
Wharton's Jelly
- D.
Mesenchyme
Correct Answer
D. MesenchymeExplanation
Mesenchyme is the earliest form of connective tissue. It contains a large amount of ground substance, which is a gel-like material that fills the space between cells. This ground substance provides support and cushioning to the cells. Mesenchyme also has the ability to differentiate and give rise to other types of connective tissue, such as bone, cartilage, and blood. Therefore, it is characterized by its abundance of ground substance and its role in tissue development and regeneration.Rate this question:
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- 15.
Connective tissue cells and connective tissue types are each prevalent throughout the body in multiple forms. Some of these forms are more prevalent than others. What is the most common type of connective tissue found throughout the body?
- A.
Fibroblasts
- B.
Specialized Connective Tissue
- C.
Connective Tissue Proper
- D.
Pericytes
Correct Answer
C. Connective Tissue ProperExplanation
Connective tissue cells and connective tissue types are found throughout the body in various forms. The most common type of connective tissue found throughout the body is Connective Tissue Proper. This type of connective tissue includes fibroblasts, which are the most common cells found in connective tissue. Fibroblasts are responsible for producing and maintaining the extracellular matrix, which provides structural support to the tissues and organs of the body. Therefore, Connective Tissue Proper, which includes fibroblasts, is the most prevalent type of connective tissue in the body.Rate this question:
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- 16.
Releasing inflammatory mediators from it's stored basophilic granules, this cell produces an inflammatory response otherwise known as an allergic reaction. What type of cell is this?
- A.
Mast Cell
- B.
Adipocyte
- C.
Histamine
- D.
Chemotactic cell
Correct Answer
A. Mast CellExplanation
Mast cells are responsible for releasing inflammatory mediators from their stored basophilic granules, which triggers an allergic reaction or an inflammatory response. Adipocytes are fat cells and do not play a role in the immune response. Histamine is a mediator released by mast cells, not a type of cell itself. Chemotactic cells are cells that respond to chemical signals and move towards or away from the source, but they do not specifically produce inflammatory responses like mast cells do. Therefore, the correct answer is Mast Cell.Rate this question:
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- 17.
Sometimes known as a histiocyte, I am present throughout your body. With an insatiable hunger, I eat, eat, eat many things like your dead cells, tissue debris, and other particulates. I am a sentinel. What type of cell am I?
- A.
Myofibril
- B.
Adipocyte
- C.
Hematopoietic
- D.
Macrophage
Correct Answer
D. MacropHageExplanation
The given description mentions that this cell is present throughout the body and has an insatiable hunger to eat dead cells, tissue debris, and other particulates. This indicates that the cell plays a role in the immune system and is involved in phagocytosis. Macrophages are immune cells that engulf and digest cellular debris, pathogens, and other foreign substances. Therefore, the correct answer is macrophage.Rate this question:
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- 18.
Fibroblasts produce many fibers and extracellular components. Which of the following is not produced by fibroblasts?
- A.
Protheaglycans
- B.
Glycosaminoglycans
- C.
Elastin
- D.
Ground Substance
Correct Answer
B. GlycosaminoglycansExplanation
Among the options provided, "Ground Substance" is not produced by fibroblasts. Fibroblasts primarily produce components such as proteoglycans, glycosaminoglycans, and elastin, which contribute to the extracellular matrix. Ground substance, however, is a gel-like material that fills the space between cells and fibers in the extracellular matrix but is not directly produced by fibroblasts themselves.Rate this question:
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- 19.
Composed mainly of type III collagen, this connective tissue is found in highly cellular organs such as the spleen. It allows the expansion and contraction of cells as well as producing a 3D anastomosing network. What type of connective tissue is it?
- A.
Areolar
- B.
Reticular
- C.
Loose
- D.
Dense Irregular
Correct Answer
B. ReticularExplanation
Reticular tissue is the correct answer because it is composed mainly of type III collagen and is found in highly cellular organs such as the spleen. It allows the expansion and contraction of cells and produces a 3D anastomosing network, making it the most suitable option among the given choices.Rate this question:
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- 20.
This connective tissue contains fibers oriented in one direction which maximizes its ability to withstand stress in that direction. This connective tissue is great for tendons. What type of connective tissue is it?
- A.
Dense Irregular
- B.
Dense Regular
- C.
Reticular
- D.
Areolar
Correct Answer
B. Dense RegularExplanation
Dense regular connective tissue contains fibers that are oriented in one direction, which maximizes its ability to withstand stress in that direction. This type of connective tissue is great for tendons, which need to withstand tension and transmit forces between muscles and bones. Dense irregular connective tissue, on the other hand, has fibers that are oriented in multiple directions and provides strength and support to organs and joints. Reticular connective tissue forms the framework for certain organs, while areolar connective tissue is a loose and flexible tissue that surrounds and supports organs.Rate this question:
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- 21.
Who is going to pass this exam with flying colors?
- A.
You
- B.
You
- C.
You
- D.
You
- E.
You
Correct Answer
A. YouExplanation
The answer is "You" because the question is asking who is going to pass the exam with flying colors, and the repeated "You" suggests that the person being referred to is confident and capable of achieving a high score or performing exceptionally well in the exam.Rate this question:
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Jun 28, 2024Quiz Edited by
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Aug 18, 2015Quiz Created by
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