Not every relation is a function. But every function is a relation. Function is just a part of relation.
The cubic function.
Range
A formula or graph are two ways to describe a math function. How a math function is described depends on the domain of the function or the complexity of the function.
The Mandelbrot graph is generated iteratively and so is a function of a function of a function ... and in that sense it is a composite function.
lobule
Auricle is the external feature of ear that contains the helix and lobule.
Portal vein
bronchioles
Lobule
In the center of a liver lobule, there is a central vein. This area collects the blood that contains liver sinusoids. That blood is then filtered back to the hepatic vein.
bronchopulmonary segment
Auricle, Helix, Lobule, Tragus.
the hepatic lobule is the structural and functional unit of the liver. there are about 50,000 - 1,00,000 lobules in the liver. the lobule is a honey comb like structure and it is made up of liver cells called hepatocytes.
Helix and lobule (anatomy 201 student)
Respiratory bronchioles and the alveoli are the smallest part in case of the lungs. There are millions of them in your lungs.
tertiary bronchi divide into bronchioles, which serve small compartments called lobules