Connective tissue II (Adipose and Cartilage) Flashcards
_______ are transported by blood and lymph from the intestine and liver in lipoprotein complexes known as chylomicrons (Chylo) and VLDLs
triglycerides
In the capillary endothelial cells of adipose tissue, these complexes are partly broken down by _________ _________, releasing free fatty acids and glycerol
lipoprotein lipase
Norepinephrine from nerve endings stimulates the cyclic AMP (cAMP) system, which activates _______ _________ -_______to hydrolyze the stored triglycerides to free fatty acids and glycerol. These substances diffuse into the capillary, where the fatty acids bind albumin for transport throughout the body for use as an energy source
hormone sensitive lipase
describe the development of white and brown fat cells
Mesenchymal cells differentiate initially as preadipocytes and then develop further as adipocytes as they accumulate fat and thus give rise to mature unilocular or multilocular fat cells
Brown adipocytes are slightly larger and characteristically contain many small lipid droplets and central spherical nuclei (T or F)
FALSE (smaller)
what are the 3 types of cartilage?
- hyaline
- Fibrocartilage
- Elastic cartilage
adipose tisue is composed of?
adipocytes
what is the function of adipose tissue?
Energy storage, endocrine organ, thermal insulation, cushion
what is the difference between white fat and brown fat?
white: unilocular, large cells, nucleus and cytoplasm marginalized. Efficient energy storage
brown: multilocular, smaller cells, mitochondrion-rich, thermogenesis.
describe cartilage
tough form of connective tissue, ECM rich in GAGs and proteoglycans interacting with collagen and elastic fibers.
Composed of Matrix, Chondrocytes, and Perichondrium.
types of cartilage
Hyaline, elastic and fibrocartilage.
