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Questions and Answers
Which muscle is responsible for flexing, abducting, and laterally rotating the hip, as well as flexing and medially rotating the knee?
Which muscle is responsible for flexing, abducting, and laterally rotating the hip, as well as flexing and medially rotating the knee?
- Rectus femoris
- Iliacus
- Sartorius (correct)
- Pectineus
Which muscle has its origin at the iliac fossa and is responsible for hip flexion?
Which muscle has its origin at the iliac fossa and is responsible for hip flexion?
- Psoas major
- Iliacus (correct)
- Vastus medialis
- Rectus femoris
Where does the pectineus muscle insert?
Where does the pectineus muscle insert?
- Upper part of the medial surface of the tibia
- Base of the patella via quadriceps tendon
- Back of the femur, just below the lesser trochanter (correct)
- Lesser trochanter of the femur
Which muscle has its origin at the rectus femoris and is responsible for flexing and medially rotating the knee?
Which muscle has its origin at the rectus femoris and is responsible for flexing and medially rotating the knee?
What is the origin of the quadriceps femoris muscle known as the straight head?
What is the origin of the quadriceps femoris muscle known as the straight head?
Flashcards
What is the Sartorius Muscle?
What is the Sartorius Muscle?
The sartorius muscle is a long, thin muscle located on the anterior thigh. It is responsible for flexing, abducting, and laterally rotating the hip joint. It also contributes to flexing and medially rotating the knee joint.
Where does the Iliacus muscle originate and what is its main function?
Where does the Iliacus muscle originate and what is its main function?
The iliacus muscle originates from the iliac fossa, a deep depression in the iliac bone. It plays a crucial role in flexing the hip joint.
Where does the Pectineus muscle insert and what is its function?
Where does the Pectineus muscle insert and what is its function?
The Pectineus muscle is a short, flat muscle that inserts on the femur, just below the lesser trochanter. This insertion point plays a role in hip adduction and flexion.
What is the function of the Rectus femoris muscle?
What is the function of the Rectus femoris muscle?
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Where does the 'straight head' of the quadriceps femoris originate?
Where does the 'straight head' of the quadriceps femoris originate?
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Study Notes
Hip and Knee Muscles
- The iliopsoas muscle is responsible for flexing, abducting, and laterally rotating the hip, as well as flexing and medially rotating the knee.
Iliacus Muscle
- The iliacus muscle has its origin at the iliac fossa and is responsible for hip flexion.
Pectineus Muscle
- The pectineus muscle inserts at the pectineal line of the femur.
Rectus Femoris Muscle
- The rectus femoris muscle originates at the anterior inferior iliac spine and is responsible for flexing and medially rotating the knee.
Quadriceps Femoris Muscle
- The quadriceps femoris muscle, specifically the rectus femoris, has its origin at the anterior inferior iliac spine, known as the straight head.
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