Asked by Chanelle Nichuals on Jul 02, 2024

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Alexandria, a sprinter, experienced thigh pain during the start of her last race. Within 48 hours of the race, she noticed extensive bruising on the back of her thigh extending into the back of the knee and has difficulty rising from a seated position and flexing her knee. Bending at the waist generates more pain. Which muscle is likely injured?

A) Gluteus maximus
B) Popliteus
C) Biceps femoris
D) Gastrocnemius
E) Iliopsoas

Extensive Bruising

Widespread or large areas of bruising on the body, which can indicate trauma, underlying health issues, or certain medical treatments.

Biceps Femoris

A muscle of the posterior thigh that is part of the hamstring group, playing a crucial role in knee flexion and thigh extension.

Seated Position

A posture where an individual rests on their buttocks with the torso upright, commonly used for activities such as working, eating, and driving.

  • Identify the anatomical locations and functions of muscles involved in lower limb movements and their impact on activities like sprinting.
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SK
Sahil kumarJul 02, 2024
Final Answer :
C
Explanation :
The symptoms described, including extensive bruising on the back of the thigh, difficulty rising from a seated position, and pain when flexing the knee or bending at the waist, suggest a hamstring injury. The biceps femoris is a part of the hamstring group located at the back of the thigh, making it the most likely muscle to be injured given the symptoms.