Lecture 5 - Cell Biology 3 Flashcards
Functions of connective tissue
1 - connect, suspend, and form organs
2 - resist mechanical forces
3 - insulate
4 - cushion
5 - store energy
6 - provide nutrition
What are the four fundamental types of connective tissue
1 - connective tissue proper
2 - cartilage
3 - bone
4 - blood
What 3 properties do all connective tissue have
1 - cells
2 - fibers
3 - ground substance
What are the kinds of cells found in connective tissue
1 - fibroblasts
2 - reticular cells
3 - leukocytes
4 - fat cells
Fibroblasts
produces Type I collagen fibers and ground substance
Reticular cells
In lymphoid organs and bone marrow
produces type 3 collagen (reticular fibers)
Another name for leukocytes is
White Blood Cells
Macrophages
phagocytize (cellular debris)
Plasma cells
antibody factories
derived from B cells
nuclei are on the side of the cytoplasm
what cells are responsible for immune surveillance
lymphocytes
granulocytes
monocytes
What are the two types of fat cells
white and brown
White fat
lipid droplet with one nucleus
What animals is brown fat typically found in? why?
hibernating animals and early development due to the ability to produce heat w/o high metabolic stress
West Highland white terriers are prone to canine idiopathic pulmonary fibrosis (CIPF). CIPF causes exercise intolerance, restrictive dyspnea (labored breathing), and coughing, primarily due to an abundance of scar tissue found in the lungs. CIPF is also noted by the proliferation of type I collagen fibers and ground substance accumulation in the lung tissue. Based on this, what cell type do you believe is overactive in these terriers suffering from CIPF?
fibroblasts
What are the two general categories of fibers in connective tissue
1 - elastic
2 - collagen
