Asked by Fabiola Morales on Jun 13, 2024
Verified
Which of the following muscles would be considered an antagonist to the rectus femoris?
A) Sartorius
B) Biceps femoris
C) Vastus intermedius
D) Gracilis
E) Vastus lateralis
Rectus Femoris
A muscle in the quadriceps group that extends the leg at the knee and assists in hip flexion.
Antagonist
A substance that interferes with or inhibits the physiological action of another, often referring to muscles or drugs.
Biceps Femoris
A muscle of the posterior thigh compartment, important in knee flexion and thigh extension, part of the hamstrings group.
- Understand the influence of particular muscles on executing movement and establishing posture.
- Pinpoint the muscular groups instrumental in the actions of limb extension, flexion, abduction, and adduction.
Verified Answer
CG
Cristal GaminoJun 19, 2024
Final Answer :
B
Explanation :
The biceps femoris is an antagonist to the rectus femoris because while the rectus femoris is a primary muscle involved in knee extension and hip flexion, the biceps femoris is part of the hamstrings group that primarily facilitates knee flexion and hip extension, thus opposing the actions of the rectus femoris.
Learning Objectives
- Understand the influence of particular muscles on executing movement and establishing posture.
- Pinpoint the muscular groups instrumental in the actions of limb extension, flexion, abduction, and adduction.