1.Wear disposable gloves and place the fresh kidney on the dissection tray.
2.Observe the external features of the kidney, such as its size, shape, and color.
3.Use the scalpel to make a longitudinal incision along the convex surface of the kidney.
4.Use the forceps and scissors to carefully remove the adipose tissue and other connective tissue surrounding the kidney.
5.Observe the various structures of the kidney, including the renal capsule, cortex, medulla, renal pelvis, and renal arteries and veins.
6.Use the scalpel to make a transverse cut near the middle of the kidney to observe the renal pyramid and renal columns.
7.Remove the renal pelvis and dissect the renal pyramid to observe the renal papilla and calyx.
8.Observe the various blood vessels, including the afferent and efferent arterioles, and the glomerulus.
9.Rinse the kidney with water and clean it with a disinfectant solution.
10.Dry the kidney with paper towels and dispose of the gloves and other materials in a biohazard waste container.
Observation:
1.The kidney is a bean-shaped organ, reddish-brown in color, and about the size of a fist.
2.The external surface of the kidney is covered by a thin, transparent renal capsule.
3.The cortex appears lighter in color and the medulla appears darker in color.
4.The renal pelvis is the funnel-shaped structure that collects urine from the kidney and drains into the ureter.
5.The renal artery and vein enter and exit the kidney at the hilum.
6.The renal pyramid and columns are striated structures within the medulla.
7.The renal papilla is the apex of the renal pyramid, and the calyx is the cup-like structure that surrounds the papilla.
8.The glomerulus is the tuft of blood vessels located within the renal corpuscle.
Conclusion:
Dissecting a kidney is a valuable exercise for understanding the anatomy and physiology of the urinary system. It helps in identifying the various structures of the kidney and their functions.
Precautions:
1.Wear disposable gloves to avoid contamination and exposure to infectious materials.
2.Use dissection instruments carefully to avoid injury.
3.Dispose of all materials in a biohazard waste container.
4.Clean and disinfect the dissection tray and instruments after use to prevent contamination.
Answers & Comments
Aim: To dissect a kidney and study its various parts and structures.
Materials required:
1.Fresh kidney
2.Dissection tray
3.Dissection instruments (scalpel, scissors, forceps)
4.Disposable gloves
5.Disinfectant solution
6.Paper towels
Procedure:
1.Wear disposable gloves and place the fresh kidney on the dissection tray.
2.Observe the external features of the kidney, such as its size, shape, and color.
3.Use the scalpel to make a longitudinal incision along the convex surface of the kidney.
4.Use the forceps and scissors to carefully remove the adipose tissue and other connective tissue surrounding the kidney.
5.Observe the various structures of the kidney, including the renal capsule, cortex, medulla, renal pelvis, and renal arteries and veins.
6.Use the scalpel to make a transverse cut near the middle of the kidney to observe the renal pyramid and renal columns.
7.Remove the renal pelvis and dissect the renal pyramid to observe the renal papilla and calyx.
8.Observe the various blood vessels, including the afferent and efferent arterioles, and the glomerulus.
9.Rinse the kidney with water and clean it with a disinfectant solution.
10.Dry the kidney with paper towels and dispose of the gloves and other materials in a biohazard waste container.
Observation:
1.The kidney is a bean-shaped organ, reddish-brown in color, and about the size of a fist.
2.The external surface of the kidney is covered by a thin, transparent renal capsule.
3.The cortex appears lighter in color and the medulla appears darker in color.
4.The renal pelvis is the funnel-shaped structure that collects urine from the kidney and drains into the ureter.
5.The renal artery and vein enter and exit the kidney at the hilum.
6.The renal pyramid and columns are striated structures within the medulla.
7.The renal papilla is the apex of the renal pyramid, and the calyx is the cup-like structure that surrounds the papilla.
8.The glomerulus is the tuft of blood vessels located within the renal corpuscle.
Conclusion:
Dissecting a kidney is a valuable exercise for understanding the anatomy and physiology of the urinary system. It helps in identifying the various structures of the kidney and their functions.
Precautions:
1.Wear disposable gloves to avoid contamination and exposure to infectious materials.
2.Use dissection instruments carefully to avoid injury.
3.Dispose of all materials in a biohazard waste container.
4.Clean and disinfect the dissection tray and instruments after use to prevent contamination.