NAME: ______
BIOLOGY UNIT 1
KIDNEY DISSECTION PRACTICAL

Instructions

·  Put on safety equipment including lab coat, safety glasses, gloves, and tie back long hair

·  Collect equipment including dissection board and tools

·  Collect a kidney and lay it flat on your dissection board

·  Draw a life-size diagram of the external structure of the kidney on a piece of paper. Include a heading and label the following structures on your diagram: Fibrous renal capsule, Hilum, Adipose tissue, Ureter

·  Make observations and answer Questions 1 to 4 below:

Questions
1. Measure the kidney: Length: _cm
Width: _cm (2 marks)
2.  2. What animal has this kidney come from? How does the size of this animal’s kidney compare to a human’s kidney? (1 mark)
______
3.  3. What is the colour of
a)  the membrane around the kidney? ______(1 mark)
b)  the kidney? ______(1 mark)
4.  4. It should be possible to identify three tubes entering or leaving the kidney. What are these called? (3 marks) ______

·  Use a scalpel and make a longitudinal section through the kidney

·  Use pins and the labels provided to make small flags to indicate the following structures:

- Renal capsule - cortex

- medulla - renal callacys

- calyx - ureter

- adipose tissue - pyramid

·  Make observations and answer Questions 5 and 6 below:

Questions
5.  Name the equipment used for the dissection (3 marks)
______
6.  What is the colour of the:
a)  Cortex? ______(1 mark)
b)  Medulla?______(1 mark)
c)  Pelvis?______(1 mark)

·  Draw a life-size diagram of the longitudinal section through the kidney on another piece of paper and include labels and a heading.

·  Dispose of the kidney and gloves as instructed, clean all the equipment, the bench and work area, and wash hands.

CRITERIA SHEET

CRITERIA

/ MARK ALLOCATED /

MARK

AWARDED
Dissection: External structure of the kidney
Life-size sketch including heading and 4 specified labels / 1
5

Dissection: Longitudinal section through the kidney

Accurate Flag Labels
Life size sketch including heading and labels / 1
8
1

Questions

/ 14
Total / 30

FLAGS:

RENAL CAPSULE / ADIPOSE
TISSUE / CORTEX / MEDULLA
URETER / RENAL
PELVIS / PYRAMID / CALLACYS