It occurs naturally and is developed by the body according to where the most blood is needed. One of the densest areas of capillaries are in our intestinal area.
Capillary density within tissues varies directly with tissues' rates and metabolism.
Arteriole
There's a greater capillary density in endurance athletes, due to the angiogenesis that occurs.Source: BIPN 108: Exercise Physiology, UCSD
capillary
Capillary density will drastically increases due to the functional properties of osmolality throughout the muscular skeletal system as attributed to the involved effects of homeostasis.
Infants have a higher density of capillary beds in their tissues, which supports their rapid growth and metabolic demands. This extensive capillary network facilitates efficient oxygen and nutrient delivery while also aiding in thermoregulation. As infants grow, the distribution and density of these capillary beds change to adapt to their developing body and physiological needs.
because of the gravity
One can increase capillary density in the body through regular aerobic exercise, such as running or cycling, which helps stimulate the growth of new capillaries. Additionally, maintaining a healthy diet rich in antioxidants and omega-3 fatty acids can also support capillary growth.
exchage of materials between blood and tissues occur in cappilaries.
yes
loop of Henley
Capillaries pick up carbon dioxide from the cells of the body and deliver oxygen.