What is the importance of the cortex in the kidney?
What is the importance of the cortex in the kidney?
The cortex provides a space for arterioles and venules from the renal artery and vein, as well as the glomerular capillaries, to perfuse the nephrons of the kidney. Erythropotein, a hormone necessary for the synthesis of new red blood cells, is also produced in the renal cortex.
Which parts are present in the cortex of the kidney?
It contains the renal corpuscles and the renal tubules except for parts of the loop of Henle which descend into the renal medulla. It also contains blood vessels and cortical collecting ducts. The renal cortex is the part of the kidney where ultrafiltration occurs.
How are increased convolutions and intelligence related?
It has been hypothesized that the high degree of cortical convolution may be a neurological substrate that supports some of the human brain’s most distinctive cognitive abilities. Consequently, individual intelligence within the human species might be modulated by the degree of cortical convolution.
Why the convolutions found on the cerebral hemispheres are important?
Neuroscience for Kids – The cerebral cortex of the human brain is highly convoluted, meaning it has many folds and creases. These convolutions allow a large surface area of brain to fit inside our skulls. Because of this brain shape, our brains can have billions of neurons and we can still have relatively small heads!
Which animal has the most convoluted cortex?
yes the folding of the cortex is “designed” to maximize surface area for a given volume. Homo sapiens has by far the most convoluted cortex. A rat brain, by comparison, looks quite smooth.
What is the cortex and medulla of the kidney?
The main difference between renal cortex and renal medulla is that renal cortex is the outer region of the kidney which contains blood vessels connected to the nephrons whereas renal medulla is the inner region of the kidney which contains 8-12 renal pyramids.
What is the function of convolutions of the brain?
What causes convolutions in the brain?
The convolutions in our brains are caused by mechanical constraints. This work was published in the Nature Physics journal, and co-authored by François Rousseau, a researcher at Télécom Bretagne.
What is the difference between the renal cortex and the medulla?
The renal cortex receives most of the blood flow, & is mostly concerned with reabsorbing filtered material. The medulla is a highly metabolically active area, which serves to concentrate the urine. The renal pelvis is a funnel shaped reservoir that collects the urine and passes it to the ureter for excretion.
How many nephrons are there in the cortex of the kidney?
Cortex – the outer region of the kidney; extensions of the cortical tissue, contains about one million blood filtering nephrons Nephron – these are the filtration units in the kidneys Medulla – inner region of the kidney contains 8-12 renal pyramids. The pyramids empty into the calyx.
How many pyramids are in the medullary region of the kidney?
Medulla – the inner region of the kidney contains that contains 8-12 renal pyramids. The pyramids empty into the calyx. Medullary pyramids – Are formed by the collecting ducts, inner part of the kidney Ureter – Collects the filtrate and urine from the renal pelvis and transports it to the bladder
What is the function of the efferent arterioles in the kidney?
In the outer two-thirds of the renal cortex, the efferent arterioles form what is a known as a peritubular network, supplying the nephron tubules with oxygen and nutrients. The inner third of the cortex and the medulla are supplied by long, straight arteries called vasa recta.