Podcast
Questions and Answers
Which of the following is the MOST accurate description of the hip joint's classification?
Which of the following is the MOST accurate description of the hip joint's classification?
- A fibrous joint allowing limited movement between the femur and the acetabulum.
- A ball-and-socket synovial joint connecting the lower limb to the axial skeleton. (correct)
- A hinge joint facilitating flexion and extension of the lower limb.
- A cartilaginous joint where the femur connects to the pelvis.
If a patient is experiencing pain during hip abduction, which muscle group is MOST likely involved?
If a patient is experiencing pain during hip abduction, which muscle group is MOST likely involved?
- Hip adductors
- Hip flexors
- Hip extensors
- Hip abductors (correct)
Which ligament is MOST responsible for preventing hyperextension of the hip joint?
Which ligament is MOST responsible for preventing hyperextension of the hip joint?
- Iliofemoral ligament (correct)
- Pubofemoral ligament
- Ligamentum teres
- Ischiofemoral ligament
What is the PRIMARY function of the acetabular labrum?
What is the PRIMARY function of the acetabular labrum?
Which of the following muscles is NOT considered a primary hip external rotator?
Which of the following muscles is NOT considered a primary hip external rotator?
Damage to the fovea capitis would MOST directly affect which structure?
Damage to the fovea capitis would MOST directly affect which structure?
What is the MOST likely consequence of a weakened or torn hip joint capsule?
What is the MOST likely consequence of a weakened or torn hip joint capsule?
Which of the following muscle groups is primarily responsible for hip extension during activities like climbing stairs?
Which of the following muscle groups is primarily responsible for hip extension during activities like climbing stairs?
Which bony landmark serves as a critical attachment site for several muscles around the hip joint?
Which bony landmark serves as a critical attachment site for several muscles around the hip joint?
If a tear occurs in the articular cartilage of the hip joint, what is the MOST likely immediate consequence?
If a tear occurs in the articular cartilage of the hip joint, what is the MOST likely immediate consequence?
Flashcards
Acetabulum
Acetabulum
The cup-like cavity on the pelvis that articulates with the head of the femur.
Femoral Head
Femoral Head
A rounded process at the proximal end of the femur that articulates with the acetabulum to form the hip joint.
Hip Joint Capsule
Hip Joint Capsule
A fibrous structure that surrounds the hip, connecting the acetabulum and the femur.
Iliofemoral Ligament
Iliofemoral Ligament
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Acetabular Labrum
Acetabular Labrum
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Articular Cartilage
Articular Cartilage
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Greater Trochanter
Greater Trochanter
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Fovea Capitis
Fovea Capitis
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Ligamentum Teres
Ligamentum Teres
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Pubofemoral ligament
Pubofemoral ligament
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Study Notes
- The hip joint is a ball-and-socket synovial joint connecting the lower limb to the axial skeleton.
- It consists of the femoral head articulating with the acetabulum of the pelvis.
Bones of the Hip Joint
- Femur: The thighbone, featuring a rounded head that forms the "ball" of the joint.
- Pelvis: The hip bone, a fusion of the ilium, ischium, and pubis.
- Acetabulum: A cup-like depression on the pelvis's lateral side where the femoral head articulates.
- Fovea Capitis: A small depression on the femoral head, serving as an attachment for the ligamentum teres.
Joint Capsule and Ligaments
- Hip Joint Capsule: A fibrous capsule enclosing the hip joint, attaching to the acetabulum and the femur.
- Iliofemoral ligament: It reinforces the anterior capsule to prevent hyperextension.
- Pubofemoral ligament: This also reinforces the anterior capsule, preventing hyperextension
- Ischiofemoral ligament: Reinforces the posterior capsule
- Ligamentum Teres: Connects the fovea capitis to the acetabulum.
Muscles of the Hip
- Hip Flexors: key muscles include iliopsoas, rectus femoris, and sartorius.
- Hip Extensors: key muscles include gluteus maximus, hamstrings (biceps femoris, semitendinosus, semimembranosus).
- Hip Abductors: key muscles include gluteus medius, gluteus minimus, and tensor fasciae latae.
- Hip Adductors: key muscles include adductor longus, adductor magnus, adductor brevis, and gracilis.
- External Rotators: key muscles include gluteus maximus, piriformis, gemellus superior and inferior, obturator internus and externus, and quadratus femoris.
- Internal Rotators: key muscles include gluteus minimus, gluteus medius, and tensor fasciae latae.
Other Important Structures
- Acetabular Labrum: A fibrocartilaginous ring surrounding the acetabulum, deepening the socket and enhancing stability.
- Articular Cartilage: A smooth cartilage layer covering the articulating surfaces of the femoral head and acetabulum.
- Greater Trochanter: A bony prominence on the proximal femur's lateral side, serving as a muscle attachment point.
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