AnswersPA Human Anatomy Physiology A 2026-2027 WHITE ICLesson 3: Muscle Structure and FunctionQuestion 12
12
QuizMultiple Choice

Lesson 3: Muscle Structure and Function

Question 12 • PA Human Anatomy & Physiology A 2026-2027 WHITE IC

Which describes step three of a muscle contraction?

Answer
A
The sarcomere lengthens.
B
The space between sarcomeres increases.
C
Actin and myosin are partially overlapped.
D
Actin and myosin are completely overlapped.
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