Adaptations for Aquatic and Aerial Movement · NCERT Biology

Which muscle group is mainly responsible for the downstroke of wings in birds?

  1. Deltoid muscles
  2. Intercostal muscles
  3. Pectoralis major
  4. Latissimus dorsi
Show answer and explanation

Correct answer: Pectoralis major

The pectoralis major muscle powers the downstroke of wings. This movement generates lift and thrust during flight.

Difficulty: Medium Question 25 of 40

Practice all 40 Adaptations for Aquatic and Aerial Movement questions

Keep practicing

More Adaptations for Aquatic and Aerial Movement questions