9
QuizMultiple Choice

Types of Tissue

Question 9 • PA Human Anatomy & Physiology A 2026-2027 WHITE IC

Which property of muscle tissue gives it the ability to contract?

Answer
A
presence of neurons
B
presence of actin and myosin
C
presence of the extracellular matrix
D
presence of secretory structures

Explanation

Muscle contraction occurs when the proteins actin and myosin interact and slide past one another, shortening the muscle fibers. Therefore, the presence of actin and myosin gives muscle tissue its ability to contract. Neurons can signal muscles, but they do not produce the contraction themselves.

AI-written and checked against the verified answer.

Previous
Next