cortical radiate arteries
I think it's the cortical radiate artery.
The liver has anastomosing vessels, specifically the hepatic arteries and portal veins, which form an intricate network that supplies blood to the liver tissue. These vessels help ensure a continuous blood supply to the liver even if one vessel is obstructed.
A column of Bertin is a normal anatomical variation in the kidney where there is an extension of cortical tissue between the renal pyramids. It appears as a vertical ridge on the surface of the kidney and is considered a harmless variation.
Increased cortical echogenicity on an ultrasound of the kidney usually indicates a medical condition affecting the kidneys, such as acute or chronic kidney disease. It may suggest scarring, inflammation, or changes in the tissue density within the kidney's cortex. Further evaluation by a healthcare provider is usually required to determine the underlying cause and appropriate management.
Every living tissue requires blood for it's survival, so does blood vessels, great vessels even have small vessels to supply themselves and they are called as "Vasa vasorum"
The kidney is made up of specialized epithelial tissue known as renal parenchyma, which includes structures like nephrons responsible for filtering blood and producing urine. Additionally, the kidney also contains supportive connective tissue, blood vessels, and collecting ducts.
The portion of the kidney that extends between the renal pyramids is called the renal columns. They are composed of cortical tissue and serve to separate the renal pyramids.
Cortical
All organs have blood vessels as they all need a supply of blood to be viable
Renal columns are bands of granular tissue that separate adjacent renal pyramids. They contain vessels and urinary tubes that run to the cortex.
The renal medulla is surrounded by the renal cortex, which is the outer layer of the kidney. It contains the renal columns, which are extensions of cortical tissue that project into the medulla.
Pulmonary arteries