Intro To Hip Flashcards
What are the stability and strength requirements for efficient weightbearing?
Efficient weightbearing requires stability and strength in resting stance, single leg stance, and the ability to handle high forces during movement.
Example sentence: Maintaining stability in single leg stance is crucial for efficient weightbearing.
What are the three types of functional classification of joints?
Diarthroses, amphiarthroses, and synarthroses.
Example sentence: Diarthroses joints allow for free movement.
What are the three types of structural classification of joints?
Fibrous, cartilaginous, and synovial.
Example sentence: Synovial joints are characterized by the presence of synovial fluid.
What is the difference between close packed and open packed positions in joints?
Close packed position is when the joint is most stable, while open packed position is when the joint is least stable.
Example sentence: The close packed position of the knee joint is full extension.
Where does the iliofemoral ligament attach?
The iliofemoral ligament attaches to the lower part of the anterior inferior iliac spine (AllS) and acetabulum to the intertrochanteric line.
Example sentence: The iliofemoral ligament plays a key role in hip joint stability.
Where does the pubofemoral ligament attach?
The pubofemoral ligament attaches from the iliopubic eminence and superior pubic ramus to the lower part of the intertrochanteric line.
Example sentence: The pubofemoral ligament provides support to the hip joint during movement.
Where does the ischiofemoral ligament arise and attach?
The ischiofemoral ligament arises from the body of the ischium to the superior part of the neck and root of the greater trochanter (GT).
Example sentence: The ischiofemoral ligament helps stabilize the hip joint.
What is the function of the acetabular labrum?
The acetabular labrum deepens the acetabulum and is attached to the bony rim and transverse ligament.
Example sentence: The acetabular labrum acts as a cushion and enhances hip joint stability.
What type of movement does a ball and socket joint allow?
Multiaxial movement.
Example sentence: The shoulder joint is a classic example of a ball and socket joint.
What anatomical features contribute to the stability of a ball and socket joint?
Deep socket and labrum.
Example sentence: The hip joint’s deep socket provides added stability during movement.
What is the significance of the angle of the neck of the femur?
It allows muscle leverage and is important for skeletal biomechanics during single-leg stance (SLS).
Example sentence: The angle of the neck of the femur affects the efficiency of hip muscle function.
What is the origin of a muscle?
The origin is where the muscle starts.
Example sentence: The origin of a muscle is usually proximal to its insertion point.
What is the insertion of a muscle?
The insertion is where the muscle ends.
Example sentence: The insertion point of a muscle is typically distal to its origin.
What does innervation refer to in the context of muscles?
Innervation refers to which nerve switches the muscle on.
Example sentence: Proper innervation is essential for muscle contraction.
What are the two basic actions muscles can perform?
Muscles can only get shorter or longer.
Example sentence: Muscle contraction involves the shortening of muscle fibers.
What are the primary hip flexor muscles?
The primary hip flexor muscles are the Iliacus, Psoas Major, Rectus Femoris, Pectineus, and Sartorius.
Example sentence: Strengthening the hip flexor muscles can improve hip mobility.
What are the primary hip extensor muscles?
The primary hip extensor muscles are the Gluteus Maximus, Hamstrings, Biceps Femoris (Long head), Semitendinosus, and Semimembranosus.
Example sentence: Strong hip extensor muscles are essential for activities like running and jumping.
What are the muscles involved in hip abduction?
The muscles involved in hip abduction are the gluteus medius, gluteus minimus, and tensor fascia latae.
Example sentence: Hip abduction exercises can help strengthen the outer hip muscles.
What are the muscles involved in hip adduction?
The muscles involved in hip adduction are the adductor brevis, adductor longus, adductor magnus, gracilis, and pectineus.
Example sentence: Hip adduction movements work the inner thigh muscles.
What are the muscles involved in hip external (lateral) rotation?
The muscles involved in hip external (lateral) rotation are Gluteus maximus, Gluteus medius (posterior part), Piriformis, Obturator internus, Obturator externus, Quadratus femoris, Gemellus inferior, and Gemellus superior.
Example sentence: Hip external rotation exercises can improve hip mobility and flexibility.
Which muscles are responsible for hip internal (medial) rotation?
The muscles responsible for hip internal (medial) rotation are Gluteus medius (anterior part), Gluteus minimus (anterior part), and Tensor fascia latae.
Example sentence: Hip internal rotation is important for activities like walking and climbing stairs.
What are the muscles included in the gluteal group?
The gluteal group includes the gluteus maximus, gluteus medius, and gluteus minimus.
Example sentence: The gluteal muscles play a key role in hip stability and movement.
Which muscles are part of the hamstrings?
The hamstrings consist of the biceps femoris, semimembranosus, and semitendinosus.
Example sentence: Hamstring flexibility is important for preventing injuries during physical activities.
What muscles make up the quadriceps?
The quadriceps are composed of the rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius.
Example sentence: Quadriceps strengthening exercises can improve knee stability and function.
What is the origin of the Psoas major muscle?
The origin of the Psoas major muscle is the vertebral bodies and intervertebral discs of T12 - L5.
Example sentence: The Psoas major muscle originates from the lumbar spine.
Where does the Psoas major muscle insert?
The Psoas major muscle inserts at the lesser trochanter.
Example sentence: The Psoas major muscle helps with hip flexion and stability.
What actions are performed by the Psoas major muscle?
The Psoas major muscle predominantly performs hip flexion, with some lumbar flexion and lateral flexion.
Example sentence: The Psoas major muscle is involved in core stability and hip movement.
What is the innervation of the Psoas major muscle?
The Psoas major muscle is innervated by the anterior rami of L1, L2, L3, and sometimes L4.
Example sentence: Proper innervation of the Psoas major muscle is essential for its function.
What is the origin of the Iliacus muscle?
The origin of the Iliacus muscle is the upper 2/3rds of the iliac fossa, ala of the sacrum, and anterior sac.
Example sentence: The Iliacus muscle plays a key role in hip flexion and stability.
What is the innervation of the Psoas major muscle?
The Psoas major muscle is innervated by the anterior rami of L1, L2, L3, and sometimes L4.
Example sentence: The Psoas major muscle is responsible for hip flexion.
What is the origin of the Iliacus muscle?
The origin of the Iliacus muscle is the upper 2/3rds of the iliac fossa, ala of the sacrum, and anterior sacroiliac ligament.
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Where does the Iliacus muscle insert?
The Iliacus muscle inserts at the lesser trochanter.
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What actions are performed by the Iliacus muscle?
The Iliacus muscle performs hip flexion and anterior pelvic tilt.
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What is the innervation of the Iliacus muscle?
The Iliacus muscle is innervated by the femoral nerve, with root values L2 and L3.
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What is the origin of the rectus femoris muscle?
The origin of the rectus femoris muscle is the anterior inferior iliac spine and the roughened area above the acetabulum.
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Where does the rectus femoris muscle insert?
The rectus femoris muscle inserts at the superior aspect of the patella and then via the ligamentum patellae to the tibial tuberosity.
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What actions are performed by the rectus femoris muscle?
The rectus femoris muscle performs hip flexion and knee extension.
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What is the innervation of the rectus femoris muscle?
The innervation of the rectus femoris muscle is the femoral nerve, with roots L2, L3, and L4.
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What are the three muscles that make up the hamstrings?
The three muscles that make up the hamstrings are the Semitendinosus, Semimembranosus, and Biceps Femoris.
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What is the origin of the semitendinosus muscle?
The origin of the semitendinosus muscle is the medial facet of the lateral aspect of the ischial tuberosity.
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Where does the semitendinosus muscle insert?
The semitendinosus muscle inserts on the medial surface of the medial condyle of the tibia.
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What actions are performed by the semitendinosus muscle?
The semitendinosus muscle is responsible for hip extension, knee flexion, and internal rotation of the knee.
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What is the innervation of the semitendinosus muscle?
The semitendinosus muscle is innervated by the tibial division of the sciatic nerve (L5, S1, and S2).
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What is the origin of the semimembranosus muscle?
The origin of the semimembranosus muscle is the upper lateral facet of the ischial tuberosity.
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Where does the semimembranosus muscle insert?
The semimembranosus muscle inserts on the posteromedial surface of the medial tibial condyle.
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What actions are performed by the semimembranosus muscle?
The semimembranosus muscle is responsible for hip extension, knee flexion, and knee internal rotation.
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What is the innervation of the semimembranosus muscle?
The semimembranosus muscle is innervated by the tibial division of the sciatic nerve (L5, S1, and S2).
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What is the origin of the long head of the Biceps Femoris?
The origin of the long head of the Biceps Femoris is the lower medial facet of the ischial tuberosity.
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What is the origin of the short head of the Biceps Femoris?
The origin of the short head of the Biceps Femoris is the lower half of the lateral lip of the linea aspera.
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Where does the Biceps Femoris insert?
The Biceps Femoris inserts predominantly on the head of the fibula, with some fibers attaching to the lateral tibial condyle.
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What actions are performed by the Biceps Femoris?
The Biceps Femoris is responsible for hip extension, knee flexion, and external rotation of the knee.
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What is the nerve supply for the long head of the Biceps Femoris?
The nerve supply for the long head of the Biceps Femoris is the tibial division of the sciatic nerve.
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What is the nerve supply for the short head of the Biceps Femoris?
The nerve supply for the short head of the Biceps Femoris is the common peroneal division of the sciatic nerve (L5, S1 & S2).
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