1. Hamstrings

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Muscle Group Analysis:**

**1. Hamstrings**

When exploring the hamstring muscle group, you are focusing on the muscles located at the back of the thigh. These muscles are essential for various movements such as bending the knee and extending the hip. The primary muscles in this group include:

- **Biceps Femoris**: This muscle has two parts - the long head and the short head. It is responsible for knee flexion and hip extension.
- **Semitendinosus**: Positioned medially to the biceps femoris, this muscle assists in knee flexion and internal rotation.
- **Semimembranosus**: This muscle, found underneath the semitendinosus, also contributes to knee flexion and internal rotation.

Understanding these muscles' functions can enhance comprehension of human movement and anatomy.
Transcribed Image Text:**Muscle Group Analysis:** **1. Hamstrings** When exploring the hamstring muscle group, you are focusing on the muscles located at the back of the thigh. These muscles are essential for various movements such as bending the knee and extending the hip. The primary muscles in this group include: - **Biceps Femoris**: This muscle has two parts - the long head and the short head. It is responsible for knee flexion and hip extension. - **Semitendinosus**: Positioned medially to the biceps femoris, this muscle assists in knee flexion and internal rotation. - **Semimembranosus**: This muscle, found underneath the semitendinosus, also contributes to knee flexion and internal rotation. Understanding these muscles' functions can enhance comprehension of human movement and anatomy.
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