Label, on the diagram, ONE structural feature of the artery shown - HSC - SSCE Biology - Question 17 - 2001 - Paper 1
Question 17
Label, on the diagram, ONE structural feature of the artery shown.
How does the labelled feature relate to the artery’s function?
Worked Solution & Example Answer:Label, on the diagram, ONE structural feature of the artery shown - HSC - SSCE Biology - Question 17 - 2001 - Paper 1
Step 1
Label, on the diagram, ONE structural feature of the artery shown.
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Answer
The structural feature to label on the artery diagram is the 'elastic fibers'. These fibers are found in the middle layer (tunica media) of the artery.
Step 2
How does the labelled feature relate to the artery’s function?
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Answer
Elastic fibers in the artery allow it to stretch and recoil. This property is essential for maintaining blood pressure as the heart pumps blood. When the heart beats, the arteries expand to accommodate the surge of blood and then return to their original shape, helping to propel the blood forward and ensuring continuous blood flow throughout the circulatory system.
