UNIT 1 BIOLOGY
PRACTICAL:
KIDNEY DISSECTION
TIME: 1 HOUR
MARKS: 27
NAME: ____________________________________________________
Instructions
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Take a kidney and lay it flat on your dissection board
Draw a life-size diagram of the external structure of the kidney.
Label the following structures on your diagram: Fibrous renal capsule, Hilum, Adipose tissue,
Ureter
Measure the length and the width of the kidney
Make observations and answer Questions 1 to 3 below:
Questions
1. Measure the kidney:
Length:
cm
Width:
cm
(2)
2. How does the size of this animal’s kidney compare to a human’s kidney?
_______________________________________________________________________(1)
3. What is the colour of
a) the membrane around the kidney?
___________________(1)
b) the kidney?
_______________________________________ (1)
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Use a scalpel and make a longitudinal section through the kidney.
Use pins and the labels provided to you to make small flags.
Indicate the following structures using the flags as labels.
o - Renal capsule
- cortex
o - medulla
- renal callacys
o - calyx
- ureter
o - adipose tissue
- pyramid
Make observations and answer Questions 4 and 5 below:
Questions
4. Name the equipment used for the dissection
___________________ (3)
5. What is the colour of the
a) Cortex?
_______________________________________
b) Medulla?
_______________________________________
c) Pelvis?
____________________________________________________(3)
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Draw a life-size labelled diagram of the longitudinal section through the kidney.
Clean the equipment and work area.
CRITERIA SHEET
CRITERIA
MARK
ALLOCATION
1
4
1
1
8
1
11
27
External structure of the kidney
Labels
Life-size sketch
Longitudinal section through the kidney
Labels
Life size sketch
Questions
Total of worksheet
MARK
FLAGS:
RENAL CAPSULE
URETER
ADIPOSE
TISSUE
RENAL
PELVIS
CORTEX
MEDULLA
PYRAMID
CALLACYS