Photo AI
Which one of these pairs of muscles are used when breathing in during exercise? A - AQA - GCSE Physical Education - Question 5 - 2022 - Paper 1
Question 5
Which one of these pairs of muscles are used when breathing in during exercise? A. Sternocleidomastoid and abdominals B. Sternocleidomastoid and deltoids C. Stern... show full transcript
Worked Solution & Example Answer:Which one of these pairs of muscles are used when breathing in during exercise? A - AQA - GCSE Physical Education - Question 5 - 2022 - Paper 1
Step 1
Which one of these pairs of muscles are used when breathing in during exercise?
Answer
The correct answer is D. Sternocleidomastoid and pectorals.
Explanation:
During exercise, the body requires increased airflow to supply oxygen to the muscles. The sternocleidomastoid muscle assists by elevating the sternum, while the pectoral muscles help expand the chest cavity. Together, these muscles facilitate effective inhalation, especially during strenuous activities.