- 1 What is found in the hilus of the kidney?
- 2 What structures are found in the cortex of the kidney?
- 3 Which 3 structures are attached to the hilus of the kidney?
- 4 What structures are located in the renal medulla How do these structures affect coloration of the medulla?
- 5 What is the function of hilum in kidney?
- 6 What vertebral level are the kidneys?
- 7 What are the 7 functions of the kidneys?
- 8 What are the 4 parts of the renal tubules?
- 9 What are the structural and functional unit of kidney called?
- 10 How many nephrons are in each kidney?
- 11 What are the 8 functions of the kidney?
- 12 What are the functional units of the kidneys called?
- 13 What is the main function of the renal medulla?
- 14 What is the difference between renal pyramid and medulla?
- 15 What is Vasa recta in nephron?
What is found in the hilus of the kidney?
The medially-located hilum contains blood vessels, nerves, and the ureters. The single medullary papilla extends deep into the renal pelvis, which often contains both white and brown adipose tissue.
What structures are found in the cortex of the kidney?
Mammalian kidneys have a somewhat granular outer section (the cortex), containing the glomeruli and convoluted tubules, and a smooth, somewhat striated inner section (the medulla), containing the loops of Henle and the collecting tubules.
Which 3 structures are attached to the hilus of the kidney?
The superior, middle, and inferior vessels enter or leave the hilum of kidney: from anterior to posterior is renal vein, renal artery and renal pelvis, respectively.
What structures are located in the renal medulla How do these structures affect coloration of the medulla?
What is located in the renal medulla, and how do these structures affect coloration of the medulla? The tissue within the medulla is a dark red color due to the amount of blood dispersed into it via the renal artery which is further divided into interlobar arteries.
What is the function of hilum in kidney?
The hilum is the concave part of the bean-shape where blood vessels and nerves enter and exit the kidney; it is also the point of exit for the ureters—the urine-bearing tubes that exit the kidney and empty into the urinary bladder. The renal pelvis connects the kidney to the rest of the body.
What vertebral level are the kidneys?
The kidneys are paired retroperitoneal structures that are normally located between the transverse processes of T12-L3 vertebrae, with the left kidney typically somewhat more superior in position than the right. The upper poles are normally oriented more medially and posteriorly than the lower poles.
What are the 7 functions of the kidneys?
The 7 functions of the kidneys
- A – controlling ACID-base balance.
- W – controlling WATER balance.
- E – maintaining ELECTROLYTE balance.
- T – removing TOXINS and waste products from the body.
- B – controlling BLOOD PRESSURE.
- E – producing the hormone ERYTHROPOIETIN.
- D – activating vitamin D.
What are the 4 parts of the renal tubules?
It contains four segments: the pars recta (the straight descending limb of proximal tubule), the thin descending limb, the thin ascending limb, and the thick ascending limb.
What are the structural and functional unit of kidney called?
Nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. There are about 1,000,000 nephrons in each human kidney.
How many nephrons are in each kidney?
Several studies have shown that total nephron (glomerular) number varies widely in normal human kidneys. Whereas the studies agree that average nephron number is approximately 900,000 to 1 million per kidney, numbers for individual kidneys range from approximately 200,000 to >2.5 million.
What are the 8 functions of the kidney?
- Regulation of extracellular fluid volume. The kidneys work to ensure an adequate quantity of plasma to keep blood flowing to vital organs.
- Regulation of osmolarity.
- Regulation of ion concentrations.
- Regulation of pH.
- Excretion of wastes and toxins.
- Production of hormones.
What are the functional units of the kidneys called?
The functional unit of the kidney is called the nephron. It comprises of a coiled renal tubule and a vascular network of peritubular capillaries. The tubule consists of different regions, each with their own important function.
What is the main function of the renal medulla?
The main function of the medulla is to regulate concentration of the urine. The urine flows from the collecting ducts into the renal calyces and pelvis, which undergoes unidirectional peristaltic movements to allow drainage of the urine into the downstream ureter and bladder.
What is the difference between renal pyramid and medulla?
Renal pyramids are kidney tissues that are shaped like cones. Between seven and eighteen pyramids exist in the innermost part of the kidney, which is called the renal medulla; in humans, there are usually only seven of the pyramids.
What is Vasa recta in nephron?
The vasa recta, the capillary networks that supply blood to the medulla, are highly permeable to solute and water. As with the loop of Henle, the vasa recta form a parallel set of hairpin loops within the medulla (see Chapter 2). A substantial increase in vasa recta blood flow dissipates the medullary gradient.