Which term describes a muscle action that increases the angle at a joint (straightening the forearm)?

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 AAMI Anatomy 1. Utilize flashcards, multiple choice questions with explanations, and detailed study aids. Succeed on your exam!

Multiple Choice

Which term describes a muscle action that increases the angle at a joint (straightening the forearm)?

Explanation:
Increasing the angle between two bones at a joint describes extension. At the elbow, straightening the forearm widens the angle between the upper arm (humerus) and the forearm (radius/ulna), which is elbow extension. Flexion would bend the elbow and decrease that angle. Abduction moves a limb away from the body's midline, and internal rotation involves turning a bone along its axis—neither changes the elbow angle in the way extension does.

Increasing the angle between two bones at a joint describes extension. At the elbow, straightening the forearm widens the angle between the upper arm (humerus) and the forearm (radius/ulna), which is elbow extension. Flexion would bend the elbow and decrease that angle. Abduction moves a limb away from the body's midline, and internal rotation involves turning a bone along its axis—neither changes the elbow angle in the way extension does.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy