Which muscles act as antagonists to abduction of the scapula?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the NHI Eastern Kinesiology Test with our comprehensive quiz. Utilize flashcards and multiple-choice questions, complete with hints and detailed explanations. Ready yourself for success!

Multiple Choice

Which muscles act as antagonists to abduction of the scapula?

Explanation:
Protraction (abduction) of the scapula is produced mainly by serratus anterior and pectoralis minor, which slide the shoulder blade forward around the rib cage. Antagonists to that movement are muscles that pull the scapula back toward the spine, i.e., retract it. The primary retractors are the middle fibers of the trapezius and the rhomboids, which pull the medial border of the scapula inward and help stabilize it. Hence, these two muscles act as the opposing force to abduction. The other options include muscles that protract or contribute to other movements, so they don’t oppose abduction directly.

Protraction (abduction) of the scapula is produced mainly by serratus anterior and pectoralis minor, which slide the shoulder blade forward around the rib cage. Antagonists to that movement are muscles that pull the scapula back toward the spine, i.e., retract it. The primary retractors are the middle fibers of the trapezius and the rhomboids, which pull the medial border of the scapula inward and help stabilize it. Hence, these two muscles act as the opposing force to abduction. The other options include muscles that protract or contribute to other movements, so they don’t oppose abduction directly.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy