How many lobes does a bovine kidney have?
The number of renal lobes ranged from 13 to 35, with a mean of 20.62. The hilar region presents the highest number of lobes, while the cranial pole presents the lowest. The number of lobes in the cranial and caudal poles increases with the width of these regions.
What forms the lobe of the kidney?
The renal lobe is a portion of a kidney consisting of a renal pyramid and the renal cortex above it.
What is the purpose of kidney dissection?
They also help regulate blood pressure and red blood cell production. Dissecting a kidney allows you to trace the path of wastes and urine through the organ and better understand its function. Mammalian kidneys are part of the urinary system, functioning with the ureter, urinary bladder, and tubular urethra.
What is a lobulated kidney?
Persistent fetal lobulation of the kidneys is an uncommon condition that causes the surface of the kidney to appear as several lobules instead of smooth, flat and continuous.
Which animal has lobulated kidneys?
Although, kidneys naturally multipyramidal in their medullary morphology are rare in terrestrial mammals, kidneys with lobulated medullas do occur in: elephants, bears, rhinoceroses, bison, cattle, pigs, and the okapi.
What are lobules in the kidney?
A cortical lobule (or renal lobule) is a part of a renal lobe. It consists of the nephrons grouped around a single medullary ray, and draining into a single collecting duct. Its near identical parallel is the rectal lobe, which is present in the majority of mammals.
What are the precautions taken by you after dissecting sheep kidney?
We should sanitize our hands first. The person observing it should wear gloves. It should properly be placed on the dissection pan. While dissection handles it with care to avoid the damage of any internal part.
What does lobulated contour mean?
Lobulated means split into sections or with partitions.
How to do a sheep kidney dissection Part 3?
SHEEP KIDNEY DISSECTION Part 3: FRONTAL SECTION OF THE KIDNEY CAREFULLY, watching your fingers, cut the kidney in half making a frontal section. You will start your incision on the side of the kidney opposite of the hilus and carefully make your way through the cortex, medulla, pelvis, ureter and renal blood vessels. Keep going!
Do bovine kidneys lose their foetal lobulation?
The kidneys of the bovine do not lose their foetal lobulation. However this is not related to its function. Despite what it’s externally lobulated appearance may suggest, the cortex of the bovine kidney is continuous and the kidney is of multipyramidal type.
How do you cut a sheep’s kidney in half?
SHEEP KIDNEY DISSECTION. Part 3: FRONTAL SECTION OF THE KIDNEY. CAREFULLY, watching your fingers, cut the kidney in half making a frontal section. You will start your incision on the side of the kidney opposite of the hilus and carefully make your way through the cortex, medulla, pelvis, ureter and renal blood vessels.
How do you find the ureter in a kidney dissection?
Dissection Instructions Examine the outside of the kidney. The ureter, renal artery, and renal vein all enter the kidney in the same area. If they are present, the ureter can be identified by the larger amount of fat tissue that is usually attached to it. Identify the ureter, renal artery, and renal vein if they are present.