Connective Tissue Flashcards
Types of connective tissue (4)
Loose
Dense
-irregular
-regular
Irregular dense connective tissue has more _______ present
Collagen
Regular dense connective tissue has what type of nuclei and what is their function?
“Box car” (squiggly)
Secrete collagen
What type of connective tissue is the site of immune reactions?
Loose CT
Main functions of CT
Provide structure (Form stroma in glands)
Fat/mineral storage
Characteristics of CT
Low cell density and highly vascular
What physical characteristic is present in collagen?
Periodicity
What type of collagen has the highest strength and periodicity?
Type I
What type of collagen is reticular and filters fluid?
Type III
What type of collagen is slender and in cartilage
Type II
Difference between fibroblasts and fibrocytes?
Fibroblast=busy
Fibrocyte=NOT busy
Immune cell found in loose CT.
Mast cells
A type of leukocyte (WBC) that surrounds and kills microorganisms (w/ pseudopodia), removes dead cells and stimulates the action of other immune system cells.
Macrophages
What are leukocytes?
White blood cells
What are the two types of adipocytes?
Unilocular
Multilocular
What is the function of unilocular adipocytes?
Store fat “white fat”
May increase or decrease but NEVER leave
“Signet ring”
What is the function of multilocular adipocytes?
Fat storage (brown fat)
Heat production
Goes away with time
Usually in infants
Steps of an inflammatory response. Ex: get a splinter
- Antigen exposure ie.splinter
- Mast cell sees antigen and gives off histamine
- Histamine causes swelling + heat production (fever)
- Mast cells call for leukocytes
What is the function of plasma cells?
Create antibodies
“B cells”
Originate in lymphoid organs
