Chapter 11 Flashcards
Which bones make up the acetabulum of the hip?
A. Ilium, ischium, femur
B. Pubis, femur, ilium
C. Ilium, ischium, pubis
D. Ilium, ischium
Ilium, ischium, pubis
The acetabulum is the socket of the hip joint formed by these three bones.
Which bony landmark is MOST OFTEN used to measure leg lengths and heights for assistive devices?
A. Anterior superior iliac spine
B. Greater trochanter of the femur
C. Posterior superior iliac spine
D. Lesser trochanter of the femur
Anterior superior iliac spine
This landmark is commonly used due to its accessibility and reliability.
Which angle indicates a coxa valgus of the femoral neck and shaft?
A. 140°
B. 125°
C. 110°
D. 90°
140°
Coxa valgus is characterized by an increased angle of inclination.
Which relationship between the neck of the femur and the femoral shaft results in an excessive ‘toeing-out’ posture?
A. Coxa valgus
B. Excessive anteversion
C. Coxa vara
D. Retroversion
Retroversion
Retroversion can limit medial rotation at the hip.
What joint condition results from a center edge angle of the acetabulum greater than 25°?
A. Decreased weight-bearing surface
B. Greater joint stability
C. Increased joint pressure
D. Reduced joint stability
Greater joint stability
A higher center edge angle provides better coverage of the femoral head.
Which ligament assists with standing without actively contracting lower extremity musculature?
A. Ligamentum teres
B. Ischiofemoral
C. Pubofemoral
D. Iliofemoral
Iliofemoral
This ligament helps to stabilize the hip joint in an upright position.
What position of the hip produces the greatest amount of contact between joint surfaces?
A. Flexed 90°, abducted, and medially rotated
B. Neutral in the sagittal plane, abducted, and medially rotated
C. Flexed 90°, abducted, and laterally rotated
D. Extended 20°, abducted, and no rotation
Flexed 90°, abducted, and laterally rotated
This position maximizes the contact area in the hip joint.
What is the average passive extension range of motion at the hip if the knee is extended?
A. 40°
B. 30°
C. 10°
D. 20°
30°
This range allows for functional movement patterns.
What motions occur with an increased anterior tilt of the pelvis?
A. Flexion at the hip, increased lumbar lordosis, spinal extension
B. Flexion at the hip, decreased lumbar lordosis, spinal extension
C. Extension at the hip, increased lumbar lordosis, spinal flexion
D. Extension at the hip, decreased lumbar lordosis, spinal flexion
Flexion at the hip, increased lumbar lordosis, spinal extension
Anterior pelvic tilt influences spinal alignment.
What is the resultant position of the left support hip when hiking the right pelvis upward?
A. Adducted
B. Laterally rotated
C. Abducted
D. Medially rotated
Abducted
This action raises the opposite side of the pelvis.
What is the resultant position of the left support hip when rotating the right pelvis forward?
A. Adducted
B. Laterally rotated
C. Abducted
D. Medially rotated
Laterally rotated
Forward rotation of the pelvis affects hip positioning.
What is the arthrokinematic motion at the hip during open-chain femoral flexion?
A. Spins medially
B. Spins posteriorly
C. Spins laterally
D. Spins anteriorly
Spins anteriorly
This motion describes the movement of the femoral head in the acetabulum.
Which muscles primarily function in hip flexion when activated?
A. Iliopsoas, sartorius, rectus femoris
B. Gluteus maximus, hamstrings
C. Iliopsoas, gluteus minimus, tensor fasciae latae
D. Gluteus maximus, piriformis
Iliopsoas, sartorius, rectus femoris
These muscles are crucial for lifting the thigh.
Which muscles are MOST LIKELY activated at the hip to achieve hip extension when moving from sitting to standing?
A. Iliopsoas, sartorius, rectus femoris
B. Gluteus maximus, hamstrings
C. Iliopsoas, gluteus minimus, tensor fasciae latae
D. Gluteus maximus, piriformis
Gluteus maximus, hamstrings
These muscles are key for extending the hip joint.
Which muscle groups assist with maintaining the pelvis in a level position when standing on one leg?
A. Iliopsoas, sartorius, rectus femoris
B. Gluteus maximus, hamstrings
C. Gluteus medius, gluteus minimus, tensor fasciae latae
D. Gluteus maximus, piriformis
Gluteus medius, gluteus minimus, tensor fasciae latae
These muscles stabilize the pelvis during unilateral stance.