Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Components of CT
|
Cells
ECM - fibers (collagen, reticular/type IV collagen, elastic) & Ground Subtance (GAGs, proteoglycans, glycoproteins) |
|
|
3 main classes of CT
|
Embryonic CT
CT Proper (Loose, Dense irregular, Dense regular) Specialized CT (bone, cartilage, blood) |
|
|
Type of Loose CT that's made primarily of Collagen I packed in parallel fashion. Found in tendons and ligaments.
|
Dense Regular CT
|
|
|
Type of Loose CT that is less cellular than LCT, contains little ground substance, and densly packed fibers in random orientation
|
Dense Irregular CT
|
|
|
3 types Loose CT proper
|
areolar
reticular adipose |
|
|
Where is loose CT typically found?
What commonly occurs in loose CT? |
beneath skin and internal body surfaces
site of inflammation and immune rxns |
|
|
What are the 2 types of cells in CT
|
Resident (fibroblasts, pericytes, adipocytes)
Transient (MPS and WBC) |
|
|
Type of resident cell that is the main cell type in LCT and is the cell that secretes the ECM.
What 3 organelles are enriched in this cell? |
Fibroblasts
RER, ribosomes, Golgi |
|
|
Type of resident cell that is pluripotent and considered the mesenchmyal stem cell. Also located near vasculature so they can differentiate during wound healing.
|
pericytes
|
|
|
What are Mononuclear Phagocyte System (MPS) cells?
|
derived from monocytes
phagocytize foreign substances and present them to immune cells secrete lymphokines |
|
|
Type of CT Proper that is abundant in Collagen III, contains long elastic fibers with little branching, and are found in boundaries b/w CT and epithelium and in lymph organs.
|
Reticular CT
|
|
|
Type of CT Proper that originates from mesenchymal stem cells and fxn to store triglycerides and provide insulation. Contain droplets of lipids in cytoplasm that are NOT membrane bound!
|
Adipose
|
|
|
Unilocular adipose with no UCP genes and few blood vessels
|
White adipose
|
|
|
Multilocular adipose found babies and mediastinum that fxns in heat production. Contain UCP genes to decrease H+ gradients in mitochondria and are highly vascularized. Cold exposure signals mesenchymal stem cells to make more of these cells
|
brown adipose
|
|
|
The _____ monitors energy state. It receives short-term signals from the ______ and long-term signals from _____.
|
hypothalamus
gut adipose |
