The external structure of the heart. Describe the location of the heart (position) in the body relative to other organs in the vicinity. What other organs/tissues are the heart situated near to. 

Word count 100 words 

10% allowance over the word count.

Paraphrase citation

Use the citation to the endpoint in each response

stick to OpenStax and Lumen Learning, or A-Level Biology textbooks (Save My Exams)

Try to give additional specific facts and details like numerical information, specific cellular/histological details. 

Reduced the surrounding wording or opening sentences to instead directly describe or explain versus the question/AC instructions

Websites 

Heart Anatomy | Anatomy and Physiology II (lumenlearning.com)

19.1 Heart Anatomy – Anatomy and Physiology | OpenStax

The Human Heart (3.5.2) | AQA A Level Biology Revision Notes 2017 | Save My Exams