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Questions and Answers
What is the femur's role in the body?
What is the femur's role in the body?
- It is the primary bone supporting the knee joint
- It provides structural support for the calf muscles
- It is the only bone in the thigh and the longest bone in the body (correct)
- It connects the pelvis to the lower leg bones
Where does the head of the femur articulate?
Where does the head of the femur articulate?
- With the patella to facilitate knee movement
- With the acetabulum of the pelvis to form the hip joint (correct)
- With the tibia to form the knee joint
- With the ischium to support body weight
What attaches to the greater trochanter of the femur?
What attaches to the greater trochanter of the femur?
- Quadriceps femoris muscles
- Adductor magnus muscle
- Hamstring muscles
- Gluteus medius, gluteus minimus, and piriformis muscles (correct)
What is the function of the neck of the femur?
What is the function of the neck of the femur?
Which bony processes are found in the proximal aspect of the femur?
Which bony processes are found in the proximal aspect of the femur?
What is the angle of projection of the neck of the femur to the shaft?
What is the angle of projection of the neck of the femur to the shaft?
Which muscles originate from the greater trochanter of the femur?
Which muscles originate from the greater trochanter of the femur?
What can occur as a result of forceful contraction of the gluteus medius at the greater trochanter?
What can occur as a result of forceful contraction of the gluteus medius at the greater trochanter?
Where does the head of the femur articulate to form a joint?
Where does the head of the femur articulate to form a joint?
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Study Notes
Femur Overview
- The femur is the longest, strongest, and heaviest bone in the human body.
Femur Anatomy
- The head of the femur articulates at the acetabulum of the pelvis.
- The greater trochanter of the femur is the site of attachment for the gluteus medius, gluteus minimus, and iliotibial tract muscles.
- The neck of the femur is a narrow, cone-shaped region that connects the head to the shaft, providing a wide range of motion.
Femur Structure
- The proximal aspect of the femur has three bony processes: the greater trochanter, lesser trochanter, and head.
- The neck of the femur projects at an angle of approximately 125° to the shaft.
Muscular Attachments
- The gluteus medius, gluteus minimus, and iliotibial tract muscles originate from the greater trochanter of the femur.
- Forceful contraction of the gluteus medius at the greater trochanter can cause the femur to rotate laterally.
Joint Formation
- The head of the femur articulates with the acetabulum of the pelvis to form the hip joint.
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