What is the renal tubule made of?
The renal corpuscle consists of a tuft of capillaries called a glomerulus and a cup-shaped structure called Bowman’s capsule. The renal tubule extends from the capsule. The capsule and tubule are connected and are composed of epithelial cells with a lumen.
What is the cross section of the kidney?
Kidney Cross Section Anatomy The kidneys lie in the retroperitoneal space on the posterior abdominal wall on either side of the T12-L3 vertebrae. The right kidney usually lies more inferior than the left kidney because of the presence of the liver on the right side.
Which tissue makes up tubules in the kidney?
Simple cuboidal epithelium is found in glandular tissue and in the kidney tubules.
What is the name of the first section of the kidney tubules?
The first part is called the proximal convoluted tubule (PCT) due to its proximity to the glomerulus; it stays in the renal cortex. The second part is called the loop of Henle, or nephritic loop, because it forms a loop (with descending and ascending limbs) that goes through the renal medulla.
What is the other name of renal tubule?
Each nephron is a long tubule (or extremely fine tube) that is closed, expanded, and folded into a double-walled cuplike structure at one end. This structure, called the renal corpuscular capsule, or Bowman’s capsule, encloses a cluster of capillaries (microscopic blood vessels) called the glomerulus.
Where is kidney in our body image?
Picture of the Kidneys. The kidneys are a pair of bean-shaped organs on either side of your spine, below your ribs and behind your belly. Each kidney is about 4 or 5 inches long, roughly the size of a large fist. The kidneys’ job is to filter your blood.
What are kidney tubules called?
The cortex and medulla are seen to be composed of masses of tiny tubes. These are called kidney tubules or nephrons (see diagrams 12.5 and 12.6). A human kidney consists of over a million of them.
What structures are located in the renal cortex?
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 do kidneys look?
Your kidneys are shaped like beans, and each is about the size of a fist. They are near the middle of your back, one on either side of your spine, just below your rib cage. Each kidney is connected to your bladder by a thin tube called a ureter.
Where are the tubules located in the renal system?
The region of cortex between the rays, called the cortical labyrinth (or pars convoluta) in slide 204 View Image, contains renal corpuscles and the convoluted portions of the tubules. 1. Tubules Identify the three general types of tubules that occur in the cortical labyrinth and medullary rays of the cortex:
How is the distal convoluted tubule different from the proximal tubule?
The cells of the distal convoluted tubule are smaller and more lightly stained than those of the proximal convoluted tubule. Consequently, more nuclei are apparent in a cross section of distal convoluted tubule compared to proximal convoluted tubule. Distal convoluted tubules also lack a brush border on their apical surface.
What to look for in a renal tubule?
Look for tubules in which the epithelium is simple cuboidal or low columnar, the cell outlines usually appear particularly distinct, and the nuclei are prominent and closer together than in proximal or distal tubules.
Where to find simple cuboidal epithelium ( 40X ) in the kidney?
Simple cuboidal epithelium (40X) Kidney cortex This is the same image we used to show you how to find simple squamous epithelium in the kidney (the outer part of the kidney is at the top). Since each organ in the body is made of two or more tissues, most of the slides you see in lab will have several tissues on them.