The Exam HiveTEAS and HESI Prep

About Muscular System

Learn the correct order of events in skeletal muscle contraction. Discover how action potential, calcium ions, ATP, and cross-bridge formation lead to muscle movement.

Related Topics

General TerminologyCells and TissuesSkeletal SystemNervous SystemEndocrine System
Back to topics

Muscular System HESI A2 Practice Questions

Free Muscular System practice questions for the HESI A2 exam with detailed rationales.

Question 1 of 2

Arrange the steps of skeletal muscle contraction in the correct order. Options: A. Myosin heads bind to actin, forming cross-bridges B. Calcium ions bind to troponin, exposing binding sites C. Action potential reaches the neuromuscular junction D. ATP is hydrolyzed, causing the myosin heads to pivot E. Sarcomere shortens as actin slides over myosin