Question: How Do You Cut The Sheep Kidney According To The Dissection Procedure?

How do you dissect a kidney?

Remove the fat from the outside of the kidney by hand or with some scalpel cuts. The kidney is covered in a thin membrane called the renal capsule. With a scalpel cut the kidney on the side of the ureter. Rotate the kidney around and repeat cuts until you cut all around the organ and can open it out like a book.

What kind of kidney is used in the dissection?

Kidneys suitable for dissection include fresh sheep or bullock kidneys purchased from a butcher, abattoir or a supplier that has passed relevant health inspections. It is best to get them left in fat if possible with some of the ureter and blood vessels left attached.

Which structures are found at the hilus of the sheep kidney?

The structures found in the renal hilum are arteries, veins, ureters, lymphatics, and nerves.

Which of the following are sections of the renal medulla?

These structures include the vasa rectae (both spuria and vera), the venulae rectae, the medullary capillary plexus, the loop of Henle, and the collecting tubule. The renal medulla is hypertonic to the filtrate in the nephron and aids in the reabsorption of water.

What is the path of blood through the kidney?

Blood flows into your kidney through the renal artery. This large blood vessel branches into smaller and smaller blood vessels until the blood reaches the nephrons. In the nephron, your blood is filtered by the tiny blood vessels of the glomeruli and then flows out of your kidney through the renal vein.

What is the covering of the kidney called?

Each kidney is held in place by connective tissue, called renal fascia, and is surrounded by a thick layer of adipose tissue, called perirenal fat, which helps to protect it. A tough, fibrous, connective tissue renal capsule closely envelopes each kidney and provides support for the soft tissue that is inside.

Where in your kidney dissection would the nephrons be located?

Nephrons: The Basic Functional Units of Blood Filtration and Urine Production. Each kidney contains over 1 million tiny structures called nephrons. The nephrons are located partly in the cortex and partly inside the renal pyramids, where the nephron tubules make up most of the pyramid mass.

Which region of the kidney is the most superficial?

The renal cortex is the most superficial region.

In which part of the kidney does the majority of water reabsorption occur?

The Role of Aquaporins in the Kidneys The majority of water reabsorption that occurs in the nephron is facilitated by the AQPs. Most of the fluid that is filtered at the glomerulus is then reabsorbed in the proximal tubule and the descending limb of the loop of Henle.

Is a tube of muscle that pushes urine into the bladder?

The Ureters Move Urine from the Kidneys to the Bladder The ureters are long, thin tubes made of smooth muscle. Contractions of the smooth muscle push urine down through the ureters and into the bladder. In adults, the ureters are 25–30 cm long, about the length of a 12-inch ruler.

How many calyx are located in each kidney?

The renal calyces, from seven to thirteen in number, are cup-shaped tubes, each of which embraces one or more of the renal papillæ; they unite to form two or three short tubes (the superior, middle and inferior calyces), and these in turn join to form a funnel-shaped sac, the renal pelvis.

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.

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 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.