Interosseous muscles are innervated by the deep branch of which nerve? (Alternate phrasing)

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

Discover high-yield NBME Gross Anatomy concepts with quizzes designed to enhance your understanding. Equip yourself with flashcards, multiple-choice questions, and detailed explanations. Prepare effectively for your anatomy exam!

Multiple Choice

Interosseous muscles are innervated by the deep branch of which nerve? (Alternate phrasing)

Explanation:
Interosseous muscles in the hand regulate finger spreading and bringing fingers together, so their motor supply must come from a nerve that powers intrinsic hand muscles. The deep branch of the ulnar nerve provides the motor innervation to the interossei (and the deep hand muscles), after the ulnar nerve enters the hand. The median nerve mainly supplies the thenar muscles and lateral two lumbricals, while the radial nerve covers the extensor compartments and does not innervate the interossei. Therefore, the interosseous muscles are innervated by the deep branch of the ulnar nerve.

Interosseous muscles in the hand regulate finger spreading and bringing fingers together, so their motor supply must come from a nerve that powers intrinsic hand muscles. The deep branch of the ulnar nerve provides the motor innervation to the interossei (and the deep hand muscles), after the ulnar nerve enters the hand. The median nerve mainly supplies the thenar muscles and lateral two lumbricals, while the radial nerve covers the extensor compartments and does not innervate the interossei. Therefore, the interosseous muscles are innervated by the deep branch of the ulnar nerve.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy