Intro To Hip

Question 1

What are the stability and strength requirements for efficient weightbearing?

Answer 1

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.

Question 2

What are the three types of functional classification of joints?

Answer 2

Diarthroses, amphiarthroses, and synarthroses.

Example sentence: Diarthroses joints allow for free movement.

Question 3

What are the three types of structural classification of joints?

Answer 3

Fibrous, cartilaginous, and synovial.

Example sentence: Synovial joints are characterized by the presence of synovial fluid.

Question 4

What is the difference between close packed and open packed positions in joints?

Answer 4

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.

Question 5

Where does the iliofemoral ligament attach?

Answer 5

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.

Question 6

Where does the pubofemoral ligament attach?

Answer 6

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.

Question 7

Where does the ischiofemoral ligament arise and attach?

Answer 7

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.

Question 8

What is the function of the acetabular labrum?

Answer 8

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.

Question 9

What type of movement does a ball and socket joint allow?

Answer 9

Multiaxial movement.

Example sentence: The shoulder joint is a classic example of a ball and socket joint.

Question 10

What anatomical features contribute to the stability of a ball and socket joint?

Answer 10

Deep socket and labrum.

Example sentence: The hip joint’s deep socket provides added stability during movement.

Question 11

What is the significance of the angle of the neck of the femur?

Answer 11

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.

Question 12

What is the origin of a muscle?

Answer 12

The origin is where the muscle starts.

Example sentence: The origin of a muscle is usually proximal to its insertion point.

Question 13

What is the insertion of a muscle?

Answer 13

The insertion is where the muscle ends.

Example sentence: The insertion point of a muscle is typically distal to its origin.

Question 14

What does innervation refer to in the context of muscles?

Answer 14

Innervation refers to which nerve switches the muscle on.

Example sentence: Proper innervation is essential for muscle contraction.

Question 15

What are the two basic actions muscles can perform?

Answer 15

Muscles can only get shorter or longer.

Example sentence: Muscle contraction involves the shortening of muscle fibers.

Question 16

What are the primary hip flexor muscles?

Answer 16

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.

Question 17

What are the primary hip extensor muscles?

Answer 17

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.

Question 18

What are the muscles involved in hip abduction?

Answer 18

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.

Question 19

What are the muscles involved in hip adduction?

Answer 19

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.

Question 20

What are the muscles involved in hip external (lateral) rotation?

Answer 20

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.

Question 21

Which muscles are responsible for hip internal (medial) rotation?

Answer 21

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.

Question 22

What are the muscles included in the gluteal group?

Answer 22

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.

Question 23

Which muscles are part of the hamstrings?

Answer 23

The hamstrings consist of the biceps femoris, semimembranosus, and semitendinosus.

Example sentence: Hamstring flexibility is important for preventing injuries during physical activities.

Question 24

What muscles make up the quadriceps?

Answer 24

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.

Question 25

What is the origin of the Psoas major muscle?

Answer 25

The origin of the Psoas major muscle is the vertebral bodies and intervertebral discs of T12 - L5. ## Footnote Example sentence: The Psoas major muscle originates from the lumbar spine.

Question 26

Where does the Psoas major muscle insert?

Answer 26

The Psoas major muscle inserts at the lesser trochanter. ## Footnote Example sentence: The Psoas major muscle helps with hip flexion and stability.

Question 27

What actions are performed by the Psoas major muscle?

Answer 27

The Psoas major muscle predominantly performs hip flexion, with some lumbar flexion and lateral flexion. ## Footnote Example sentence: The Psoas major muscle is involved in core stability and hip movement.

Question 28

What is the innervation of the Psoas major muscle?

Answer 28

The Psoas major muscle is innervated by the anterior rami of L1, L2, L3, and sometimes L4. ## Footnote Example sentence: Proper innervation of the Psoas major muscle is essential for its function.

Question 29

What is the origin of the Iliacus muscle?

Answer 29

The origin of the Iliacus muscle is the upper 2/3rds of the iliac fossa, ala of the sacrum, and anterior sac. ## Footnote Example sentence: The Iliacus muscle plays a key role in hip flexion and stability.

Question 30

What is the innervation of the Psoas major muscle?

Answer 30

The Psoas major muscle is innervated by the anterior rami of L1, L2, L3, and sometimes L4. ## Footnote Example sentence: The Psoas major muscle is responsible for hip flexion.

Question 31

What is the origin of the Iliacus muscle?

Answer 31

The origin of the Iliacus muscle is the upper 2/3rds of the iliac fossa, ala of the sacrum, and anterior sacroiliac ligament. ## Footnote No additional information.

Question 32

Where does the Iliacus muscle insert?

Answer 32

The Iliacus muscle inserts at the lesser trochanter. ## Footnote No additional information.

Question 33

What actions are performed by the Iliacus muscle?

Answer 33

The Iliacus muscle performs hip flexion and anterior pelvic tilt. ## Footnote No additional information.

Question 34

What is the innervation of the Iliacus muscle?

Answer 34

The Iliacus muscle is innervated by the femoral nerve, with root values L2 and L3. ## Footnote No additional information.

Question 35

What is the origin of the rectus femoris muscle?

Answer 35

The origin of the rectus femoris muscle is the anterior inferior iliac spine and the roughened area above the acetabulum. ## Footnote No additional information.

Question 36

Where does the rectus femoris muscle insert?

Answer 36

The rectus femoris muscle inserts at the superior aspect of the patella and then via the ligamentum patellae to the tibial tuberosity. ## Footnote No additional information.

Question 37

What actions are performed by the rectus femoris muscle?

Answer 37

The rectus femoris muscle performs hip flexion and knee extension. ## Footnote No additional information.

Question 38

What is the innervation of the rectus femoris muscle?

Answer 38

The innervation of the rectus femoris muscle is the femoral nerve, with roots L2, L3, and L4. ## Footnote No additional information.

Question 39

What are the three muscles that make up the hamstrings?

Answer 39

The three muscles that make up the hamstrings are the Semitendinosus, Semimembranosus, and Biceps Femoris. ## Footnote No additional information.

Question 40

What is the origin of the semitendinosus muscle?

Answer 40

The origin of the semitendinosus muscle is the medial facet of the lateral aspect of the ischial tuberosity. ## Footnote No additional information.

Question 41

Where does the semitendinosus muscle insert?

Answer 41

The semitendinosus muscle inserts on the medial surface of the medial condyle of the tibia. ## Footnote No additional information.

Question 42

What actions are performed by the semitendinosus muscle?

Answer 42

The semitendinosus muscle is responsible for hip extension, knee flexion, and internal rotation of the knee. ## Footnote No additional information.

Question 43

What is the innervation of the semitendinosus muscle?

Answer 43

The semitendinosus muscle is innervated by the tibial division of the sciatic nerve (L5, S1, and S2). ## Footnote No additional information.

Question 44

What is the origin of the semimembranosus muscle?

Answer 44

The origin of the semimembranosus muscle is the upper lateral facet of the ischial tuberosity. ## Footnote No additional information.

Question 45

Where does the semimembranosus muscle insert?

Answer 45

The semimembranosus muscle inserts on the posteromedial surface of the medial tibial condyle. ## Footnote No additional information.

Question 46

What actions are performed by the semimembranosus muscle?

Answer 46

The semimembranosus muscle is responsible for hip extension, knee flexion, and knee internal rotation. ## Footnote No additional information.

Question 47

What is the innervation of the semimembranosus muscle?

Answer 47

The semimembranosus muscle is innervated by the tibial division of the sciatic nerve (L5, S1, and S2). ## Footnote No additional information.

Question 48

What is the origin of the long head of the Biceps Femoris?

Answer 48

The origin of the long head of the Biceps Femoris is the lower medial facet of the ischial tuberosity. ## Footnote No additional information.

Question 49

What is the origin of the short head of the Biceps Femoris?

Answer 49

The origin of the short head of the Biceps Femoris is the lower half of the lateral lip of the linea aspera. ## Footnote No additional information.

Question 50

Where does the Biceps Femoris insert?

Answer 50

The Biceps Femoris inserts predominantly on the head of the fibula, with some fibers attaching to the lateral tibial condyle. ## Footnote No additional information.

Question 51

What actions are performed by the Biceps Femoris?

Answer 51

The Biceps Femoris is responsible for hip extension, knee flexion, and external rotation of the knee. ## Footnote No additional information.

Question 52

What is the nerve supply for the long head of the Biceps Femoris?

Answer 52

The nerve supply for the long head of the Biceps Femoris is the tibial division of the sciatic nerve. ## Footnote No additional information.

Question 53

What is the nerve supply for the short head of the Biceps Femoris?

Answer 53

The nerve supply for the short head of the Biceps Femoris is the common peroneal division of the sciatic nerve (L5, S1 & S2). ## Footnote No additional information.