Comprehensive Quiz on Anterior Pelvis, Gluteal Muscles, and Deep Hip Rotators

1. Which of the following muscles are considered part of the gluteal group?

Trapezius

Gluteus Maximus

Soleus

Rectus Femoris

The gluteal group consists of the Gluteus Maximus, Gluteus Medius, Gluteus Minimus, and Tensor Fascia Latae muscles which are primarily responsible for hip movement and stabilization.

Explanation

The gluteal group consists of the Gluteus Maximus, Gluteus Medius, Gluteus Minimus, and Tensor Fascia Latae muscles which are primarily responsible for hip movement and stabilization.

2. What is the function of the gluteus medius?

Deltoid of the glutes

Internal rotation, adduction, flexion, extension

Flexion, abduction, adduction, contralateral rotation

Adduction, lateral rotation, depression, posterior tilt

The gluteus medius is responsible for various movements at the hip joint and pelvis, including abduction, flexion, medial rotation, extension, lateral rotation, depression, posterior tilt, anterior tilt, and contralateral rotation.

Explanation

The gluteus medius is responsible for various movements at the hip joint and pelvis, including abduction, flexion, medial rotation, extension, lateral rotation, depression, posterior tilt, anterior tilt, and contralateral rotation.

3. TENSOR FASCIA LATAE(Nerves/Attachments/Actions)

Greater Trochanter, DISTAL: Fibular Head

Inferior Gluteal (L3, L4, L5)

THIGH @ hip joint

Depression (same side)

The correct answer provides the specific nerves, attachments, and actions associated with the Tensor Fascia Latae muscle. The three incorrect answers provide alternative nerves, attachments, and actions that do not correspond to the actual characteristics of the muscle, leading to confusion and potential misinformation.

Explanation

The correct answer provides the specific nerves, attachments, and actions associated with the Tensor Fascia Latae muscle. The three incorrect answers provide alternative nerves, attachments, and actions that do not correspond to the actual characteristics of the muscle, leading to confusion and potential misinformation.

4. Which gluteal muscle(s) is/are innervated by the Inferior Gluteal Nerve?

Gluteus Minimus

Piriformis

Gluteus Maximus

Gluteus Medius

The Gluteus Maximus is the only gluteal muscle innervated by the Inferior Gluteal Nerve, responsible for extension and outward rotation of the hip joint.

Explanation

The Gluteus Maximus is the only gluteal muscle innervated by the Inferior Gluteal Nerve, responsible for extension and outward rotation of the hip joint.

5. Which hip rotator(s) are innervated by a nerve from the Lumbosacral Plexus?

Gluteus Maximus

Rectus Femoris

Lumbosacral Plexus

Sartorius

Hip rotators Piriformis, Superior Gemellus, Inferior Gemellus, Obturator Internus, and Quadratus Femoris are innervated by a nerve from the Lumbosacral Plexus. Gluteus Maximus, Sartorius, and Rectus Femoris are not innervated by the same nerve.

Explanation

Hip rotators Piriformis, Superior Gemellus, Inferior Gemellus, Obturator Internus, and Quadratus Femoris are innervated by a nerve from the Lumbosacral Plexus. Gluteus Maximus, Sartorius, and Rectus Femoris are not innervated by the same nerve.

6. Which Deep Hip Rotator is enervated by the Obturator Nerve?

Gemellus Inferior

Obturator Externus

Gemellus Superior

Piriformis

The Obturator Externus is the deep hip rotator muscle enervated by the Obturator Nerve.

Explanation

The Obturator Externus is the deep hip rotator muscle enervated by the Obturator Nerve.

7. Which 2 deep hip rotators share the exact same predominant spinal segment (enervation) and what is that segment?

Piriformi Obturator Internus, segment S1

Gemellus superior, Gemellus inferior, segment: L5

Gluteus minimus, Gluteus medius, segment: S2

Quadratus femoris, Obturator externus, segment: L4

The correct answer is Piriformis and Obturator Internus, both enervated by spinal segment S1 due to their anatomical location and function in the hip joint.

Explanation

The correct answer is Piriformis and Obturator Internus, both enervated by spinal segment S1 due to their anatomical location and function in the hip joint.

8. Anterior Pelvic muscle(s) enervated by:

Rectus Abdominis

Adductor Magnus

Gluteus Maximus

Psoas

The Psoas muscle is the primary muscle of the hip flexors and is enervated by a nerve from the Lumbar Plexus. Gluteus Maximus, Rectus Abdominis, and Adductor Magnus are not directly enervated by nerves from the Lumbar Plexus.

Explanation

The Psoas muscle is the primary muscle of the hip flexors and is enervated by a nerve from the Lumbar Plexus. Gluteus Maximus, Rectus Abdominis, and Adductor Magnus are not directly enervated by nerves from the Lumbar Plexus.

9. Which anterior pelvic muscle is innervated by the Femoral Nerve?

Iliacus

Pectineus

Psoas Major

Rectus Femoris

The correct answer is the Iliacus muscle, which is innervated by the Femoral Nerve. The Psoas Major muscle is innervated by the Lumbar Plexus, the Rectus Femoris muscle is innervated by the Femoral Nerve but is part of the Quadriceps group, and the Pectineus muscle is innervated by the Obturator Nerve.

Explanation

The correct answer is the Iliacus muscle, which is innervated by the Femoral Nerve. The Psoas Major muscle is innervated by the Lumbar Plexus, the Rectus Femoris muscle is innervated by the Femoral Nerve but is part of the Quadriceps group, and the Pectineus muscle is innervated by the Obturator Nerve.

10. Which deep hip rotators DO NOT attach to the greater trochanter of the femur?

Gemellus Superior(upper posterior border of the greater trochanter of the femur)

Gemellus Inferior(obturator tuberosity of the femur)

Piriformis(greater trochanter of the femur)

Obturator Externus

The correct answer states that the Obturator Externus attaches to the trochanteric fossa of the femur and Quadratus Femoris attaches to the intertrochanteric crest of the femur. The incorrect answers provided have different attached points to the greater trochanter or obturator tuberosity.

Explanation

The correct answer states that the Obturator Externus attaches to the trochanteric fossa of the femur and Quadratus Femoris attaches to the intertrochanteric crest of the femur. The incorrect answers provided have different attached points to the greater trochanter or obturator tuberosity.