Question
Study the diagram below and answer the questions that follow
(i) Name the muscle labelled:
(ii) What happens to each muscle as the arm is straightened?
(i) Name the muscle labelled:
(ii) What happens to each muscle as the arm is straightened?
Answer
(a) A - Biceps
B - Triceps;
(b) A - Biceps relax
B - Triceps contract;
B - Triceps;
(b) A - Biceps relax
B - Triceps contract;
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