rate of metabolism
Capillary density within tissues varies directly with tissues' rates and metabolism.
Cancer tissues are not density dependent.
yes
Tissue without capillaries is called avascular tissue. Examples of avascular tissue include:CartilageEpitheliaCorneaLensAll organs contain blood vessels.
Capillaries are part of the cardiovascular system. The capillaries are the smallest type of vessels of the system. They reside in almost all of the tissues in the body. The capillaries are so small, that they can only allow for one red blood cell to pass through it. The capillaries is where the gas exchange from blood to tissue and tissue to blood take place.
Tissue density and temperature
The capillaries are the starting point of the one-way lymphatic system. Lymph capillaries originate in tissues and drain any excess tissue fluid that has not been reabsorbed into the bloodstream and move it into lymph veins. This prevents swelling or edema (collection of fluid in the tissues).
No, ductless glands release hormones directly into the bloodstream for transportation to target organs or tissues. These hormones are not absorbed by capillaries in the tissue fluid, but instead circulate in the blood until they reach their target cells.
The exchange of oxygen and carbon dioxide between systemic capillaries and tissue cells is called external respiration. Oxygen is taken up by the blood in the capillaries and delivered to the tissues, while carbon dioxide is picked up from the tissues by the blood to be removed from the body.
Capillaries directly connect the bloodstream to every single cell in your body. They deliver oxygen, nutrients and water for respiration to occur.
Oxygen is transported by red blood cells and is released into tissues as they pass through capillaries in the tissue.
Proton density refers to the amount of hydrogen atoms in tissue. More protons result in higher signal intensity in MRI images. Tissues with higher proton density appear brighter in MRI scans, while tissues with lower proton density appear darker.