Which muscle extends the knee and is part of the quadriceps group?

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 $24.99Unlock all

Explore muscle actions, origins and insertions. Enhance your knowledge with engaging flashcards and detailed multiple-choice questions with explanations. Prepare confidently for your test!

Multiple Choice

Which muscle extends the knee and is part of the quadriceps group?

Explanation:
Knee extension is produced by the quadriceps femoris group, a set of muscles on the front of the thigh. This group includes four muscles: rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius. All of them contribute to straightening the knee when they contract. Among the options, the muscle that is a true part of the quadriceps and extends the knee is vastus medialis. The tibialis anterior moves the foot (dorsiflexion), not the knee. The gastrocnemius crosses the knee but mainly plantarflexes the ankle and is not part of the quadriceps, so it isn’t the knee-extending quadriceps muscle.

Knee extension is produced by the quadriceps femoris group, a set of muscles on the front of the thigh. This group includes four muscles: rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius. All of them contribute to straightening the knee when they contract. Among the options, the muscle that is a true part of the quadriceps and extends the knee is vastus medialis. The tibialis anterior moves the foot (dorsiflexion), not the knee. The gastrocnemius crosses the knee but mainly plantarflexes the ankle and is not part of the quadriceps, so it isn’t the knee-extending quadriceps muscle.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy