Connective Tissue (Fibrous) Flashcards
Connective tissue is classified into major groups Embryonic CT and Adult CT. Embryonic CT contains pluripotent stem cells while adult CT is further broken up into what 2 subdivisions?
Include the components of the subdivisions of Adult CT.
Fibrous CT
- Loose Areolar CT
- Dense Regular CT
- Dense Irregular CT
Special CT
- Adipose
- Bone
- Cartilage
- Hematopoietic
All of the following are functions of CT, which of them is specific to adipose tissue?
A. Protection
B. Transport
C. Energy Storage
D. Defense
Energy Storage
Produce collagens, proteoglycans, and glycoproteins.
A. Fibroblasts
B. Mesenchymal cells
B. Adipocytes
D. Chondrocytes
Fibroblasts
Store and release fat cells
A. Fibroblasts
B. Mesenchymal cells
B. Adipocytes
D. Chondrocytes
Adipocytes
Produce and maintain cartilage components
A. Fibroblasts
B. Mesenchymal cells
B. Adipocytes
D. Chondrocytes
Chondrocytes
Which of the following types of fibrous components is known for resisting tension?
A. Elastin fibers
B. Reticular fibers
C. Collagens
Collagens
Which of the following forms a supportive meshwork?
A. Elastin fibers
B. Reticular fibers
C. Collagens
Reticular fibers
Elastin is a stretchable fiber that is an assembly of what 4 components?
Tropoelastin
Fibulin-1
Fibrilins 1
Fibrilins 2
Which type of collagen is the most common and increases tensile strength of CT by being aligned and cross-linked?
A. Type I
B. Type II
C. Type III
D. Type IV
Type I
Which of the following is the characterized of abnormal collagen synthesis leading to weak collagen fibers?
A. Scurvy
B. Ehlers-Danlos Syndrome
C. Marfans syndrome
Ehlers-Danlos Syndrome
NOTE:
Scurvy: Vitamin C deficiency –> cofactor needed for crosslinking collagen
Marfan’s Syndrome: Mutatioon in fibrilin-i gene of elastic fibers causing elastin to be weak
What are the 3 basic fibers found in the extracellular matric of fibrous CT?
Reticular
Elastin
Collagen
What are ground substances, and what role do they serve?
Ground substances: Proteoglycans, Hyaluronan, Glycoproteins, Extracell proenzymes
Combine to form an amorphous framwork structure that allows for shock absorption
Where can embryonic CT be found? What’s another name for this embryonic CT?
Umbilical cord
Wharton’s Jelly
What is the function of adult mesenchymal stem cells?
Self renewing, multipotent stem cells that produce differentiating cells specific for a tissue
Include: Fibroblasts, Muscle cells, osteoblasts, chondroblasts, adipocytes
Low density tissue with both fixed and wandering cells
A. Adipose
B. Areolar
C. Reticular
D. Dense irregular
E. Dense Regular
Areolar
Dense regular tissue would most likely be found in which of the following places?
A. Blood vessels
B. Dermis of the skin
C. Tendons
D. All of the above
Tendons
Dense irregular tissue would most likely be found in which of the following places?
A. Blood vessels
B. Dermis of the skin
C. Tendons
D. All of the above
Dermis of the skin
All of the following are fixed cells found in loose areolar tissue, EXCEPT which of the following that is a wandering cell?
A. Fibroblast
B. Adipocytes
C. Mesenchymal cells
D. Mast Cells
Mast Cells
Identify the tissue type
A. Dense Irregular Ct
B. Dense Regular Ct
C. Loose areolar CT
D. Elastic CT
Loose areolar CT
Label each of the histograms, then eetermine which of the following pictures represent the characterization below.
Fxn in energy storage, insulation, hormone secretion
Thermogenic, abundant in newborns
LEFT-White Fat: Fxn in energy storage, insulation, hormone secretion
RIGHT-Brown Fat: Thermogenic, abundant in newborns
Which of the following correctly describes the tissue in the histogram? Name the tissue
A. Found in the liver, bone marrow, lymph nodes and spleen; houses free cells like blood cells and immune cells
B. Fibroblasts are principle cell type; found in dermis, capsules around internal organs, fascia, periosteum, perichondrium
C. Fibroblast are principle cell type; poorly vascularized; found in ligaments, aponeuroses, dense fascia, joint capsules
D. Allows for recoil of tissue; found in blood vessel walls, bronchiole tubes, and special ligaments like ligamentum nuchea
Reticular CT
Found in the liver, bone marrow, lymph nodes and spleen; houses free cells like blood cells and immune cells
Which of the following correctly describes the tissue in the histogram? Name the tissue
A. Found in the liver, bone marrow, lymph nodes and spleen; houses free cells like blood cells and immune cells
B. Fibroblasts are principle cell type; found in dermis, capsules around internal organs, fascia, periosteum, perichondrium
C. Fibroblast are principle cell type; poorly vascularized; found in ligaments, aponeuroses, dense fascia, joint capsules
D. Allows for recoil of tissue; found in blood vessel walls, bronchiole tubes, and special ligaments like ligamentum nuchea
Dense Irregular CT
Fibroblasts are principle cell type; found in dermis, capsules around internal organs, fascia, periosteum, perichondrium
Which of the following correctly describes the tissue in the histogram? Name the tissue
A. Found in the liver, bone marrow, lymph nodes and spleen; houses free cells like blood cells and immune cells
B. Fibroblasts are principle cell type; found in dermis, capsules around internal organs, fascia, periosteum, perichondrium
C. Fibroblast are principle cell type; poorly vascularized; found in ligaments, aponeuroses, dense fascia, joint capsules
D. Allows for recoil of tissue; found in blood vessel walls, bronchiole tubes, and special ligaments like ligamentum nuchea
Dense Regular CT
Fibroblast are principle cell type; poorly vascularized; found in ligaments, aponeuroses, dense fascia, joint capsules
Which of the following correctly describes the tissue in the histogram? Name the tissue
A. Found in the liver, bone marrow, lymph nodes and spleen; houses free cells like blood cells and immune cells
B. Fibroblasts are principle cell type; found in dermis, capsules around internal organs, fascia, periosteum, perichondrium
C. Fibroblast are principle cell type; poorly vascularized; found in ligaments, aponeuroses, dense fascia, joint capsules
D. Allows for recoil of tissue; found in blood vessel walls, bronchiole tubes, and special ligaments like ligamentum nuchea
Elastic CT
Allows for recoil of tissue; found in blood vessel walls, bronchiole tubes, and special ligaments like ligamentum nuchea
