Blood Vessels And Nerves Flashcards
What are the layers of the general structure of blood vessels
Endothelium Basement membrane Intima Internal elastic lamina Media External elastic lamina Adventitia
What is the intima
Loose connective tissue
What is the media
Smooth muscle, some fibroblasts, collagen and elastin
What is the adventitia
Loose connective tissue
What are the elastic arteries
Aorta and pulmonary arteries
What do elastic arteries have
Concentric sheets of elastin
What are the types of arteries
Muscular and elastic
What is an arteriole
Has 3 or fewer muscular layers
Less than 100 um in diameter
Poorly defined elastic lamina
What is the capillary structure
Endothelium and basement membrane
What regulates the size of capillaries
Pericytes
Where are fennestrated capillaries found
Kidneys and liver
What is the difference between the structure of veins and arteries
Veins have no external elastic lamina, a thinner media and wider lumen
Where is myelin produced
Schwann cells
What are the connective tissues of the peripheral nerves
Endoneurium
Perineurium
Epineurium
What is the function of endoneurium
Binds together individual axons